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Define two new standardized NOP Flit types: 1....view more Define two new standardized NOP Flit types: 1. NOP.Debug (Debug information) 2. NOP.Vendor (Vendor-defined content) Existing NOP Flit definition is renamed as NOP.Empty Flit type. show less

This specification provides additional capabilities ...view more This specification provides additional capabilities for PCI Express® (PCIe) Add-in Cards (AIC) within the existing framework of legacy system board form factors such as AGP and PCI. The PCI Express solution space was historically confined to Advanced Technology eXtended (ATX) or ATX-based form factors but is now integrated into a broader range of applications. The Balanced Technology Extended (BTX) Interface Specification is acknowledged as another form factor. Other connector and form factors that use PCI Express® signaling, are addressed in separate specifications. show less

This is a companion specification to the PCI Express...view more This is a companion specification to the PCI Express Base Specification. The primary focus of this specification is the implementation of cabled PCI Express® . No assumptions are made regarding the implementation of PCI Express-compliant Subsystems on either side of the cabled Link (PCI Express Card Electromechanical (CEM), ExpressCard™, ExpressModule™, PXI Express™, or any other form factor). Such form factors are covered in separate specifications. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. One of the goals for M.2 is to be significantly smaller in the XYZ and overall volume than the HalfMini Card for the very thin computing Platforms (e.g., Notebook, Tablet/Slate Platforms) that require a much smaller solution. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 5.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This ECR adds a three-bit field called ‘OHC-E Suppor...view more This ECR adds a three-bit field called ‘OHC-E Support’ in Device Capabilities 3 Register to indicate OHC-E support details in a function. show less

The primary objectives of this External Cable Specif...view more The primary objectives of this External Cable Specification for PCI Express 5.0 and 6.0 document are to provide • 32.0 GT/s and 64.0 GT/s electrical specifications for mated cable assembly and mated cable connector based on SFF-TA-1032 Specification, • specifications of sideband functions for sideband pins allocated in the SFF-TA-1032 Specification, and • guidelines for 32.0 GT/s and 64.0 GT/s electrical spec compliance testing. show less

The concept of “Prefetchable” MMIO was originally ne...view more The concept of “Prefetchable” MMIO was originally needed to control PCI-PCI Bridges, which were allowed/encouraged to prefetch Memory Read data in prefetchable regions. MMIO that has read side-effects, e.g. locations that auto-increment when read, cannot safely be prefetched from, and so needed to be distinguished from regions that could. Additional uses/meanings evolved outside of the PCI-PCI Bridge context, but were not clearly defined in relation to behaviors outside of the PCI/PCIe fabric itself, leading to much industry confusion. Additionally, the PCI-PCI Bridge specification defined the Type1 (bridge) Function Base/Limit mechanism such that MMIO resources above 4GB can only be “Prefetchable,” and since the <4GB space is very limited by modern standards, it has been strongly encouraged for devices to always declare MMIO resource requests as “Prefetchable.” show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

The primary objectives of this Internal Cable Specif...view more The primary objectives of this Internal Cable Specification for PCI Express 5.0 and 6.0 document are to provide 32 GT/s and 64 GT/s electrical specifications for mated cable assembly and mated cable connector based on SFF-TA-1016 Specification, specifications of sideband functions for sideband pins allocated in the SFF-TA-1016 Specification, and guidelines for 32 GT/s and 64 GT/s electrical spec compliance testing. show less

This test specification is intended to confirm if a ...view more This test specification is intended to confirm if a stand-alone Retimer is compliant to the PCIe Base Specification. This test specification is not intended to test Retimers based only on the Extension Devices ECN to the PCI Express Base Specification, Revision 3.x. This test specification only covers stand-alone Retimers in common clock mode, and is not intended to test Retimers integrated onto a platform or an add-in card. show less

The focus of this specification is on PCI Express® (...view more The focus of this specification is on PCI Express® (PCIe®) solutions utilizing the SFF-8639 (also known as U.2) connector interface. Form factors include, but are not limited to, those described in the SFF-8201 Form Factor Drive Dimensions Specification. Other form factors, such as PCI Express Card Electromechanical are documented in other independent specifications. show less

This document defines the “base” specification for t...view more This document defines the “base” specification for the PCI Express architecture, including the electrical, protocol, platform architecture and programming interface elements required to design and build devices and systems. A key goal of the PCI Express architecture is to enable devices from different vendors to inter-operate in an open architecture, spanning multiple market segments including clients, servers, embedded, and communication devices. The architecture provides a flexible framework for product versatility and market differentiation. show less

This document defines the “base” specification for t...view more This document defines the “base” specification for the PCI Express architecture, including the electrical, protocol, platform architecture and programming interface elements required to design and build devices and systems. A key goal of the PCI Express architecture is to enable devices from different vendors to inter-operate in an open architecture, spanning multiple market segments including clients, servers, embedded, and communication devices. The architecture provides a flexible framework for product versatility and market differentiation.  show less

This ECR introduces updated dimensioning and toleran...view more This ECR introduces updated dimensioning and tolerances for the 48VHPWR header and plug. The 48VHPWR connector has been removed from the specification. The name for the new connector is 48V1x2. Ordering of the sense pins is changed so that Sense0 and Sense1 pins are located farthest from each other. This reordering is incompatible with the pre-existing connector definition. Per workgroup input, there are no known implementations of the 48VHPWR header and plug as of this publication date. References to external specifications are added. show less

Form factor specifications will become easier to dev...view more Form factor specifications will become easier to develop because many sideband elements can be incorporated by reference. Commonality will increase, simplifying system design and implementation. Other sections of the Base specification will be enabled to cleanly make use of sideband mechanisms, where appropriate. show less

PCI Express CEM Specification, Revision 5.1 Errata...view more PCI Express CEM Specification, Revision 5.1 Errata show less

This specification contains the Class Code and Capab...view more This specification contains the Class Code and Capability ID descriptions originally contained the PCI Local Bus Specification, bringing them into a standalone document that is easier to reference and maintain. This specification also consolidates Extended Capability ID assignments from the PCI Express Base Specification and various other PCI specifications. It is intended that this document be used along with the PCI Express Base Specification Revision 5.0. show less

This ECR defines an optional mechanism for passing m...view more This ECR defines an optional mechanism for passing management messages between system software and a PCI Function using a mailbox interface in the Function’s memory mapped I/O (MMIO) space. It also includes mechanisms to advertise, locate, and extend MMIO I/O register blocks generically, the definition of the mailbox registers and command interface, and the management message passthrough (MMPT) interface. show less

CMA-SPDM defines a mapping of the DMTF SPDM (DSP0274...view more CMA-SPDM defines a mapping of the DMTF SPDM (DSP0274) specification for PCIe implementations. Since the initial publication of CMA-SPDM, multiple revisions of DSP0274 have been published. This set of revisions is intended to align with these updates, with DOE 1.1, and with current industry direction. Highlights include: • Alignment of CMA-SPDM with SPDM 1.2 and DOE 1.1 • Removal of outdated/redundant material, especially material that is now better covered in SPDM itself • Improved clarity of SPDM mapping to data objects • Correcting under-specified areas, especially regarding interoperable algorithm choices • Remove requirements placed on leaf certificates show less

This proposal introduces a new version of the M.2 co...view more This proposal introduces a new version of the M.2 connector with improved amperage per pin to 1 A, card outline changes with increased component area options. show less

This ECN defines Connector Type encodings for the ne...view more This ECN defines Connector Type encodings for the new 12V-2x6 connector. This connector, defined in CEM 5.1, replaces the 12VHPWR connector. Update 12VHPWR encoding to reflect published CEM 5.0 (the Base Spec and CEM 5.0 were inconsistent). Update default measurement methodology for Maximum and Sustained power to match existing Form Factor specifications, providing consistency between specifications. show less

This Card Electromechanical (CEM) specification is a...view more This Card Electromechanical (CEM) specification is a companion for the PCI Express® Base Specification, Revision 5.0. Its primary focus is the implementation of an evolutionary strategy with earlier PCI™ desktop/server mechanical and electrical specifications. show less

This Card Electromechanical (CEM) specification is a...view more This Card Electromechanical (CEM) specification is a companion for the PCI Express® Base Specification, Revision 5.0. Its primary focus is the implementation of an evolutionary strategy with earlier PCI™ desktop/server mechanical and electrical specifications. show less

For the SFF-8639 module (U.2) specification, this EC...view more For the SFF-8639 module (U.2) specification, this ECR increases +3.3 VAux current. The category of SMBus inactive current is eliminated and replaced with a default current of 8 mA. Additionally, the 5 mA active current requirement is eliminated and replaced with a 25 mA requirement if MCTP or I3C Basic traffic is initiated by the platform when Vaux power is enabled while 12V is disabled. show less

This document defines the “base” specification for t...view more This document defines the “base” specification for the PCI Express architecture, including the electrical, protocol, platform architecture and programming interface elements required to design and build devices and systems. A key goal of the PCI Express architecture is to enable devices from different vendors to inter-operate in an open architecture, spanning multiple market segments including clients, servers, embedded, and communication devices. The architecture provides a flexible framework for product versatility and market differentiation. show less

This document defines the “base” specification for t...view more This document defines the “base” specification for the PCI Express architecture, including the electrical, protocol, platform architecture and programming interface elements required to design and build devices and systems. A key goal of the PCI Express architecture is to enable devices from different vendors to inter-operate in an open architecture, spanning multiple market segments including clients, servers, embedded, and communication devices. The architecture provides a flexible framework for product versatility and market differentiation.  show less

Informational testing on test case 54-20 will give D...view more Informational testing on test case 54-20 will give DUT vendor information about their implementation of the capability. Not passing judgement on test case 54-20 will prevent DUTs from incorrect failing the DUT or false passing the DUT at Compliance Workshops. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

Defines a new wire semantic and related capabilities...view more Defines a new wire semantic and related capabilities for addressing the limitations of the PCI/PCIe fabric-enforced ordering rules. Specifically:  Fabrics with multiple paths between a source and destination cannot be supported; posted Writes don’t match the semantics of other fabrics, in that the Requester doesn’t (directly) know if/when a write has actually completed; and writes flowing towards destinations with differing write performance can cause global stalls show less

This proposal introduces a new version of the M.2 co...view more This proposal introduces a new version of the M.2 connector with improved amperage per pin to 1A, and card outline changes with increased component area options. show less

This ECR removes the transmitter jitter test require...view more This ECR removes the transmitter jitter test requirement for 32 GT/s systems. Transmitter jitter test remains a requirement for 32 GT/s Add-in Cards. show less

This specification contains the Class Code and Capab...view more This specification contains the Class Code and Capability ID descriptions originally contained the PCI Local Bus Specification, bringing them into a standalone document that is easier to reference and maintain. This specification also consolidates Extended Capability ID assignments from the PCI Express Base Specification and various other PCI specifications. It is intended that this document be used along with the PCI Express Base Specification Revision 5.0. show less

This ECN replaces existing drawings for the 12VHPWR ...view more This ECN replaces existing drawings for the 12VHPWR cable plug with 2 different options. show less

CXL 3.0 defines an alternate protocol and has asked ...view more CXL 3.0 defines an alternate protocol and has asked for a DLLP assignment. They want to use a DLLP instead of a Flit_Marker to reduce their latency (this issue is unique to their protocol – PCIe does not have this issue).  show less

Expands power excursion to 12V power rail in PCIE CE...view more Expands power excursion to 12V power rail in PCIE CEM connector in addition to 12VHPWR and 48VHPWR connectors but excludes legacy 2x3 and 2x4 auxiliary power connectors from power excursion specification. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

This ECR increases the specified leakage and capacit...view more This ECR increases the specified leakage and capacitance tolerances for Auxiliary I/O signals. show less

This ECR defines a revised and extended Data Object ...view more This ECR defines a revised and extended Data Object Exchange mechanism. This ECN builds 5 upon the content defined in the ECN that defined the original revision of Data Object Exchange, published 26 March 2020 (document date of 12 March 2020). show less

This ECN adds 1.8V IO support to Type 1216, Type 222...view more This ECN adds 1.8V IO support to Type 1216, Type 2226, and Type 3026 LGAs. This support adds two previously defined pins to these LGAs: • VIO_CFG, a 1.8V IO support indication (one pin) • VIO 1.8V, a 1.8V IO Voltage source (one pin) The VIO 1.8 V signal is intended as an IO supply and reference voltage for host interface sideband signals PERST#, CLKREQ#, and PEWAKE# and additional signals such as SUSCLK, W_DISABLE1#, W_DISABLE2#. This provides IO voltage flexibility to enable IO voltage levels other than 3.3V in the applicable M.2 form factors. The VIO_CFG signal is intended to provide the Platform an indication of the IO voltage capabilities of the M.2 Adapter installed. In cases where the Platform detects that an incompatible Adapter is installed, the Platform may choose to not power the Adapter or isolate the affected sideband signals to avoid damage or interface instability. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. This document defines the “base” specification for the PCI Express architecture, including the electrical, protocol, platform architecture and programming interface elements required to design and build devices and systems. show less

This is a change bar version of the PCI Express Base...view more This is a change bar version of the PCI Express Base 6.0 Specification comparing Base 6.0/1.0 to Base 6.0.1/1.0 show less

This document defines the TEE Device Interface Secur...view more This document defines the TEE Device Interface Security Protocol (TDISP) - An architecture for trusted I/O virtualization providing the following functions: 1. Establishing a trust relationship between a TVM and a device. 2. Securing the interconnect between the host and device. 3. Attach and detach a TDI to a TVM in a trusted manner. show less

...view more Expansion of example methods for lane margining testing to create different electrical link conditions for the two test runs. These changes apply to both Add-in Card and System testing. Adding a repeatability test option as proof that lane margining measurement is implemented.   show less

This test specification is intended to confirm if a ...view more This test specification is intended to confirm if a stand-alone Retimer is compliant to the PCI Base Specification. show less

Summary of the Functional Changes...view more Summary of the Functional Changes I. Add core voltages 0.75 V in PWR_3 rail for BGA SSD. II. Add new pin configuration including 0.75 V pin. show less

Summary of the Functional Changes...view more Summary of the Functional Changes Changing the RFU pin in the 12VHPWR connector sideband to Sense1. Adding 150W and 300W power capabilities to the encoding options for Sense0 and Sense1. Makes Card_CBL_PRES required to be tied to ground with 4.7 kΩ resistor. show less

Transmitter jitter requirements at 32 GT/s are being...view more Transmitter jitter requirements at 32 GT/s are being added for system board and Add-in Card. Affected Document: PCI Express Card Electromechanical Specification Revision 5.0, Version 1.0 show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 5.0. show less

This document primarily covers PCI Express testing o...view more This document primarily covers PCI Express testing of all defined Device Types and RCRBs for the standard Configuration Space mechanisms, registers, and features. show less

This test specification primarily covers testing of ...view more This test specification primarily covers testing of PCI Express® Device and Port types for compliance with the link layer and transaction layer requirements of the PCI Express Base Specification. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 4.0.   show less

There are two informative "changebar" versions of th...view more There are two informative "changebar" versions of the PCI Express Base 6.0 Specification comparing Base 6.0/1.0 to Base 6.0/0.9 and comparing Base 5.0 to Base 6.0. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. This document defines the “base” specification for the PCI Express architecture, including the electrical, protocol, platform architecture and programming interface elements required to design and build devices and systems. show less

Original IDE ECN plus IDE items included in final Ba...view more Original IDE ECN plus IDE items included in final Base 5.0 Errata. Changebar version relative to original IDE ECN also available. show less

...view more Corresponds to Errata included in Base 6.0, Version 0.9 and Version 1.0 show less

This is a change bar version of the Integrity and Da...view more This is a change bar version of the Integrity and Data Encryption (IDE) ECN – Revision A. show less

This ECR establishes two operational modes for use o...view more This ECR establishes two operational modes for use of the Power Disable (PWRDIS) signal. The existing mode allowed use of the signal for coordinated shutdown of the PCIe device, but was optimized for a power-on reset of a non-responsive device. The new mode reduces PWRDIS minimum asserted hold time from 5 s to 100 ms for use in a coordinated shutdown with an emphasis on entry and exit times from D3cold. show less

This change allows for cards to exceed maximum power...view more This change allows for cards to exceed maximum power levels currently defined in the CEM spec to enable higher performance for certain workloads. This change clearly defines limits for these excursions to allow system designers to properly design power subsystems to enable these excursions. show less

The long-standing requirement for a component’s LTSS...view more The long-standing requirement for a component’s LTSSM to enter Detect state within 20 ms of the end of Fundamental Reset is relaxed (extended) to 100 ms for components that support >5 GT/s Link speeds. show less

This specification contains the Class Code and Capab...view more This specification contains the Class Code and Capability ID descriptions originally contained the PCI Local Bus Specification, bringing them into a standalone document that is easier to reference and maintain. This specification also consolidates Extended Capability ID assignments from the PCI Express Base Specification and various other PCI specifications. It is intended that this document be used along with the PCI Express Base Specification Revision 5.0. show less

Add 3052 and 3060 form factors for WWAN modules usin...view more Add 3052 and 3060 form factors for WWAN modules using Socket 2 with Key B and Key C. show less

Describes a method to measure Tx jitter parameters a...view more Describes a method to measure Tx jitter parameters at 32 GT/s accurately by using a Jitter Measurement Pattern. This replaces the S-parameter de-embedding method. In this method, a CTLE-based equalization instead of S-parameter based de-embedding gain filter is applied to the captured Tx waveform to mitigate signal degradation due to frequency-dependent channel loss. The CTLE-based equalization is defined by the 32 GT/s reference CTLE curves. The proposed method with the use of clock pattern in the lane under test and compliance pattern in other lanes avoids the inaccuracy of the S-parameter based de-embedding that results from the amplification of the real-time oscilloscope floor noise by the de-embedding gain filter. The Tx jitter measurement methods for 8.0 and 16.0 GT/s have been kept unchanged. show less

Introduces a fitting-based Tx preset measurement met...view more Introduces a fitting-based Tx preset measurement methodology that extracts Tx equalization coefficients from measured step responses with and without Tx equalization. Consequently, it overcomes a few limitations of the current DC voltage-level based methodology where the ratio of DC voltage levels of various presets is used to avoid measurement complexity due to high frequency-dependent loss. Since the use of the ratio of DC voltage levels do not guarantee the correct use of Tx equalization coefficients and constant voltage swing across presets, the existing DC voltage-level based measurement methodology may give incorrect results if the Tx equalization coefficients and voltage swing significantly deviate from the intended values for the specified Tx presets. show less

This is a change to the PCI Express Base Specificati...view more This is a change to the PCI Express Base Specification, Revision 5.0. show less

This is a change to the PCI Express Base Specificati...view more This is a change to the PCI Express Base Specification, Revision 5.0. show less

This Card Electromechanical (CEM) specification is a...view more This Card Electromechanical (CEM) specification is a companion for the PCI Express® Base Specification, Revision 5.0. Its primary focus is the implementation of an evolutionary strategy with earlier PCI™ desktop/server mechanical and electrical specifications. show less

This Card Electromechanical (CEM) specification is a...view more This Card Electromechanical (CEM) specification is a companion for the PCI Express® Base Specification, Revision 5.0. Its primary focus is the implementation of an evolutionary strategy with earlier PCI™ desktop/server mechanical and electrical specifications. show less

The focus of this specification is on PCI Express® (...view more The focus of this specification is on PCI Express® (PCIe®) solutions utilizing the SFF-8639 connector interface. Form factors include, but are not limited to, those described in the SFF-8201 Form Factor Drive Dimensions Specification. Other form factors, such as PCI Express Card Electromechanical are documented in other independent specifications. show less

This document describes the hardware independent fir...view more This document describes the hardware independent firmware interface for managing PCI, PCI-X, and PCI Express™ systems in a host computer. show less

This document describes the hardware independent fir...view more This document describes the hardware independent firmware interface for managing PCI, PCI-X, and PCI Express™ systems in a host computer. show less

Proposes repurposing five RFU pins in the Type 1113 ...view more Proposes repurposing five RFU pins in the Type 1113 (11.5mm x 13mm) BGA ball map to be optionally used for indicating PWR1, PWR2, and PWR3 supply voltage requirements to the platform. If this ECR is implemented then all 5 pins need to be implemented. Adds a 1.0 V power supply option for PWR3 for both BGA1113 and BGA1620. show less

Integrity & Data Encryption (IDE) provides confi...view more Integrity & Data Encryption (IDE) provides confidentiality, integrity, and replay protection for TLPs. It flexibly supports a variety of use models, while providing broad interoperability. The cryptographic mechanisms are aligned to current industry best practices and can be extended as security requirements evolve. The security model considers threats from physical attacks on Links, including cases where an adversary uses lab equipment, purpose-built interposers, malicious Extension Devices, etc. to examine data intended to be confidential, modify TLP contents, & reorder and/or delete TLPs. TLP traffic can be secured as it transits Switches, extending the security model to address threats from reprogramming Switch routing mechanisms or using “malicious” Switches. Compared to the Member Review copy, and consistent with the “NOTICE TO REVIEWERS” in that copy, this final revision contains significant revisions to the key management protocol in order to align it closely with the DMTF’s Secured Messages using SPDM Specification, which was not available at the time the Member Review copy was prepared. Additionally, the final copy includes significant improvements in protection against Adversary-in-the-Middle attacks, and, consistent with member feedback received in response to the query regarding key size for AES-GCM applied to IDE TLPs, supports only the 256b key size. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 4.0. This specification does not describe the full set of PCI Express tests and assertions for these devices show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 4.0. This specification does not describe the full set of PCI Express tests and assertions for these devices show less

Loosens restrictions on use of PASID to allow PASID ...view more Loosens restrictions on use of PASID to allow PASID to be applied to Memory Requests using Translated addresses (AT=Translated). show less

Revision B (July 22, 2020) corrects an errata in the...view more Revision B (July 22, 2020) corrects an errata in the original revision (November 28, 2018). PWRDIS timings were incorrectly specified as a maximum when they are meant to be specified as a minimum value. The affected portion is highlighted in Table 3-26 PWRDIS AC characteristics. show less

This document is a companion specification to the PC...view more This document is a companion specification to the PCI Express Base Specification and other PCI Express® documents listed in Section 1.1. The primary focus of the PCI Express OCuLink Specification is the implementation of internal and external small form factor PCI Express connectors and cables. This form factor supports multiple market segments, from client, mobile, server, datacenter, and storage. This specification discusses cabling and connector requirements to meet the 8.0 GT/s signaling needs in the PCI Express Base Specification. show less

...view more The changes are to Socket-1, Keys E and A-E Addition of 1.8V IO support type (1 pin) Addition of 1.8V IO Voltage source (1 pin) Addition of WI-FI_DISABLE and BT_DISABLE signals overlaid onto W_DISABLE1#, W_DISABLE2# Additional antenna assignment which allows for multiple Bluetooth antennas. show less

Add core voltages 0.8 V in PWR_3....view more Add core voltages 0.8 V in PWR_3. II. Add new pin configuration including 0.8 V. show less

Smaller lithography has led to smaller pad sizes whi...view more Smaller lithography has led to smaller pad sizes which has increased parasitics on inputs. For the Card Electromechanical Specification, this ECR increases Cin, the maximum input pin capacitance on 3.3 V logic signals (applies to PERST# and PWRBRK#) from 7 pF to 20 pF (see CEM Table 3). For the M.2 specification, this ECR increases M.2 CIN, the maximum input pin capacitance for both 3.3 V logic signal (applies to PERST#, see M.2 Table 4-1) and 1.8 V logic signals (applies to PERST# and PEWAKE# (when used for OBFF signaling), see M.2 Table 4-2) from 10 pF to 20 pF. This capacitance increase is large enough for known upcoming lithographies. It had not been clear what the measurement point was for CIN in CEM or M.2 specifications. This 18 ECN extends the COUT measurement point specified in M.2 to apply to CIN and COUT for both 19 CEM and M.2 specifications. show less

This proposal introduces an additional width, compon...view more This proposal introduces an additional width, component heights, and the ability to specify the top surface as a planar. show less

This is a companion specification to the PCI Express...view more This is a companion specification to the PCI Express Base Specification. The primary focus of this specification is the implementation of cabled PCI Express®. No assumptions are made regarding the implementation of PCI Express-compliant Subsystems on either side of the cabled Link (PCI Express Card Electromechanical (CEM), ExpressCard™, ExpressModule™, PXI Express™, or any other form factor). Such form factors are covered in separate specifications show less

This is a companion specification to the PCI Express...view more This is a companion specification to the PCI Express Base Specification. The primary focus of this specification is the implementation of cabled PCI Express®. No assumptions are made regarding the implementation of PCI Express-compliant Subsystems on either side of the cabled Link (PCI Express Card Electromechanical (CEM), ExpressCard™, ExpressModule™, PXI Express™, or any other form factor). Such form factors are covered in separate specifications show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 4.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 4.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This ECN defines a new Request, the Deferrable Memor...view more This ECN defines a new Request, the Deferrable Memory Write (DMWr), that requires the Completer to return an acknowledgement to the Requester, and provides a mechanism for the recipient to defer (temporarily refuse to service) the Request. To provide space for the required control registers, this ECN also defines an Extended Capability, the Device 3 Extended Capability, to provide Device Capabilities 3, Device Control 3, and Device Status 3 registers. This Extended Capability is required for DMWr support, but can also be applied to other uses besides DMWr, and therefore can be implemented by Functions that do not support DMWr. show less

This ECR defines an optional Extended Capability str...view more This ECR defines an optional Extended Capability structure and associated control mechanisms to provide System Firmware/Software the ability to perform data object exchanges with a Function or RCRB. To support Component Measurement and Authentication (CMA) accessible in-band via host firmware/software, Data Object Exchange (DOE) is required, and CMA motivates the need for DOE, although broader uses are anticipated. show less

Revision A (March 4, 2020) corrects an oversight in ...view more Revision A (March 4, 2020) corrects an oversight in the original revision (November 28, 2018). The Socket 2 Key B PCIe/USB3.1 Gen1-based WWAN Adapter Pinout was not updated to reflect the addition of 1.8V sideband support like the other tables. The affected portion is highlighted in Table 33 Socket 2 Key B PCIe/USB3.1 Gen1-based WWAN Adapter Pinout. show less

This specification contains the Class Code and Capab...view more This specification contains the Class Code and Capability ID descriptions originally contained the PCI Local Bus Specification, bringing them into a standalone document that is easier to reference and maintain. This specification also consolidates Extended Capability ID assignments from the PCI Express Base Specification and various other PCI specifications. show less

Revision A (January 30, 2020) corrects an error in t...view more Revision A (January 30, 2020) corrects an error in the original revision (September 29, 2019). The ATS Memory Attributes Supported field in the ATS Capabilities Register is now assigned bit location 8. It was previously assigned bit location 7. The affected text is highlighted in Table 10-9: ATS Capability Register. show less

Shadow Functions are permitted to be assigned only w...view more Shadow Functions are permitted to be assigned only where currently unused Functions reside. The Function declaring the shadowing is permitted to overflow its Transaction ID space over into the Shadow Function. The impetus for defining Shadow Functions is to provide more Transaction ID space without increasing the Tag field, since there are no straightforward means to do that at the current time. show less

Due to ambiguity in earlier versions of the PCIe Bas...view more Due to ambiguity in earlier versions of the PCIe Base Specification two different interpretations of the byte positions in the PTM ResponseD Message Propagation Delay field have been implemented. This ECR defines mechanisms that new hardware can implement to support the adaptation to either of the interpretations. show less

This is a companion specification to the PCI Exp...view more This is a companion specification to the PCI Express Base Specification. The primary focus of this specification is the implementation of cabled PCI Express®. No assumptions are made regarding the implementation of PCI Express-compliant Subsystems on either side of the cabled Link (PCI Express Card Electromechanical (CEM), ExpressCard™, ExpressModule™, PXI Express™, or any other form factor). Such form factors are covered in separate specifications. show less

DISCLAIMER: Table A-1, Bytes 0 to 1...view more DISCLAIMER: Table A-1, Bytes 0 to 127 (Lower Memory Fields), contained an error in the 1.0 Specification. Byte 0, Identifier, was 0Eh and has been changed to 1Ch.   show less

High Volume Manufacturing (HVM) and other manufactur...view more High Volume Manufacturing (HVM) and other manufacturer test processes benefit from the ability to set Add-in Card (AIC) modes that enable multiplexing of standard connector pins for test specific use. This ECR defines a method to allow the system to enable a Manufacturer Test Mode (MFG) on the AIC through the standard interface connector prior to shipping the AIC. This ECR to the CEM specification is consistent with Manufacturing Mode ECN to the SFF-8639 specification. show less

This specification is a companion for the PCI Expres...view more This specification is a companion for the PCI Express® Base Specification, Revision 4.0. Its primary focus is the implementation of an evolutionary strategy with the current PCI™ desktop/server mechanical and electrical specifications. show less

This specification is a companion for the PCI Expres...view more This specification is a companion for the PCI Express® Base Specification, Revision 4.0. Its primary focus is the implementation of an evolutionary strategy with the current PCI™ desktop/server mechanical and electrical specifications. show less

Final Release against Base Revision 4.0 ...view more Final Release against Base Revision 4.0 show less

This document primarily covers PCI Express testing o...view more This document primarily covers PCI Express testing of all defined PCI Express device types and RCRBs for the standard Configuration Space mechanisms, registers, and features in Chapter 6 of the PCI Local Bus Specification (Base 3.x or earlier only) and Chapters 7, 9 (Base 4.x or later only), 10 (Base 4.x or later only) of the PCI Express Base Specification (some additional tested registers are described in other specifications that are referenced in the individual test description). This specification does not describe the full set of PCI Express tests for these devices. show less

This test specification primarily covers testing of ...view more This test specification primarily covers testing of PCI Express® Device and Port types for compliance with the link layer and transaction layer requirements of the PCI Express Base Specification. Device and Port types that do not have a link (e.g., Root Complex Integrated Endpoints, Root 10 Complex Event Collectors) are not tested under this test specification. While the test environment can accommodate the presence of a Retimer, it will not test the Retimer itself. At this point, this test specification does not describe the full set of PCI Express tests for all link layer or transaction layer requirements. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building Add-in Cards or system boards to the PCI Express Card Electromechanical Specification 4.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

This specification describes the PCI Express archite...view more This specification describes the PCI Express architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This proposal introduces 8GT/s electrical compliance...view more This proposal introduces 8GT/s electrical compliance details for M.2 based SSDs.  show less

This proposal repurposes five RFU pins in the 16 mm ...view more This proposal repurposes five RFU pins in the 16 mm x 20 mm BGA ball map to be optionally used for indicating PWR1, PWR2, and PWR3 supply voltage requirements to the Platform.  show less

This ECN defines four new services under ACS for Dow...view more This ECN defines four new services under ACS for Downstream Ports, primarily to address issues when ACS redirect mechanisms are used to ensure that DMA Requests from Functions under the direct control of VMs are always routed correctly to the Translation Agent in the host. Three of the services provide redirect or blocking of Upstream Memory Requests that target areas not covered by other ACS services. The fourth service enables the blocking of Upstream I/O Requests, addressing a concern with VM-controlled Functions maliciously sending I/O Requests. show less

This is a modification of the cable assembly memory ...view more This is a modification of the cable assembly memory map defined in the OCuLink Memory Map ECN. Some bits contained within the external cable assembly's memory are modified to allow for cable aggregation. show less

This is a modification of the cable assembly memory ...view more This is a modification of the cable assembly memory map defined in the OCuLink Memory Map ECN. Some bits contained within the external cable assembly's memory are modified to allow for cable aggregation. show less

High Volume Manufacturing (HVM) benefits from the ab...view more High Volume Manufacturing (HVM) benefits from the ability to set manufacturing specific SFF8639 Module modes that enable multiplexing of standard connector pins for manufacturing test specific use. This ECR is to define a method to allow the Host to enable Manufacturing Mode on the SFF-8639 Module through the standard interface connector. The Manufacturing Mode solution proposed is consistent with that already approved in SNIA SFFTA-1001 Revision 1.1 for SFF-8639 use. show less

Changes are requested to be made to Section 4.5.1, _...view more Changes are requested to be made to Section 4.5.1, _OSC Interface for PCI Host Bridge Devices and Section 4.5.2.4 Dependencies Between _OSC Control Bits. The changes will enable the Operating System to advertise if it is capable of support _HPX PCI Express Descriptor Setting Record (Type 3) to the firmware. It also enables the Operating System and the Firmware to negotiate ownership of the PCIe Completion Timeout registers. show less

The changes effect the PCI Firmware Specification, R...view more The changes effect the PCI Firmware Specification, Revision 3.2 and will enable the Operating System to advertise its Downstream Port containment related capabilities to the firmware. It also enables the Operating System and the Firmware to negotiate ownership of Downstream Port Containment extended capability register block and collaboratively manage Downstream Port Containment events. show less

This ECN effects the PCI Express Base Specification,...view more This ECN effects the PCI Express Base Specification, Version 4.0. ePTM is an improvement on the existing Precision Time Measurement capability that provides improved detection and handling of error cases. ePTM quickly identifies and resolves errors that may cause clocks to become desynchronized. show less

This ECN introduces multiple features for M.2 and af...view more This ECN introduces multiple features for M.2 and affects the PCIe M.2 Specification Revision 1.1 and the PCIe BGA SSD 11.5x13 ECN. show less

This ECN updates several areas related to hot-plug f...view more This ECN updates several areas related to hot-plug functionality, mostly related to Async hot-plug, which is now growing in importance due to its widespread use with NVMe SSDs. All new functionality is optional. This ECN affects the PCIe 4.0 Base Specification. show less

Several dimensions included in Chapter 9 of the OCuL...view more Several dimensions included in Chapter 9 of the OCuLink 1.0 Specification are repeated from previous chapters. 7 Repeated dimensions have been removed and additional pointers have been added to direct users where to find 8 more information about various OCuLink implementations. show less

The changes affect the PCI Firmware Specification, R...view more The changes affect the PCI Firmware Specification, Revision 3.2 and enable the MCFG table format to allow for multiple memory mapped base address entries, instances of Table 4-3, per single PCI Segment Group. show less

Drawings and dimensions for the x4 form factor have ...view more Drawings and dimensions for the x4 form factor have been corrected and clarified. show less

This ECN enhances Root Complex Event Collectors (RCE...view more This ECN enhances Root Complex Event Collectors (RCECs) to allow them to be associated with Devices located on additional Bus numbers. show less

This ECN allows Address Translation Requests and Com...view more This ECN allows Address Translation Requests and Completions to support the Relaxed Ordering bit, where are currently defined to be Reserved for these types of TLPs. The proposal preserves interoperability with older Translation Agents. show less

The cable presence (CPRSNT#) signal was incompletely...view more The cable presence (CPRSNT#) signal was incompletely and inaccurately specified in the original OCuLink 1.0 specification. The definition for the logic levels of this signal contradicted the active low naming convention. The direction has multiple contradictions. show less

The OCuLink workgroup has received feedback that the...view more The OCuLink workgroup has received feedback that the information included in the specification regarding cable/ Port aggregation was unclear, particularly with respect to sideband management. Wording in sections relating to cable/ Port aggregation and sideband management has been reworked to be clearer. show less

The focus of this specification is on PCI Express (P...view more The focus of this specification is on PCI Express (PCIe®) solutions utilizing the SFF-8639 connector interface. Form factors include, but are not limited to, those described in the SFF-8201 Form Factor Drive Dimensions Specification. Other form factors, such as PCI Express CEM are documented in other independent specifications. show less

The ECN provides clarif...view more The ECN provides clarifications for requirements that affect both systems implementers and cable assembly suppliers. The revisions will save time and confusion for the implementation of the optional external OCuLink cables. show less

This change notice redefines the outer most ring of ...view more This change notice redefines the outer most ring of ground pins in the 11.5x13 BGA ball map to be redundant ground pins that are non-critical to function (NCTF).NCTF is a new pin definition indicating that while the pins shall continue to be connected to host and device ground, they are redundant such that they allow for mechanical failure but not functional failure. show less

The IL/ fitted IL requirements have been clarified....view more The IL/ fitted IL requirements have been clarified. The language of this portion of the spec has been reworked to eliminate confusion and provide uniformity in the subsections included in the following document. show less

The IL/ fitted IL requirements have been clarified....view more The IL/ fitted IL requirements have been clarified. The language of this portion of the spec has been reworked to eliminate confusion and provide uniformity in the subsections included in the following document. show less

This is a modification of the connector/cable perfor...view more This is a modification of the connector/cable performance tables defined in OCuLink 1.0, Section 6.9 and updated by the OCuLink Server Change ECN. The tables are reorganized to make this section of OCuLink more functional to the end user. Some table entry values are changed. show less

Final Release against Base Revision 3.1a.Subsequent ...view more Final Release against Base Revision 3.1a.Subsequent Errata will be against Base Revision 4.0 show less

Link Activation allows software to temporarily disab...view more Link Activation allows software to temporarily disable Link power management, enabling the avoidance of the architecturally mandated stall for software-initiated L1 Substate exits. show less

The M.2 Type 1216 Land Grid Array (LGA) Connectivity...view more The M.2 Type 1216 Land Grid Array (LGA) Connectivity module is modified to add a second PCIe lane. Referring to Figure 99 on page 127 show less

This proposal adds an additional voltage value to th...view more This proposal adds an additional voltage value to the PWR_1 rail in the PCIe BGA SSD 11.5x13 ECR. Table 3 of section 3.4 in the document “PCIe BGA SSD 11.5x13 ECR”, defines the PWR_1 signal as a 3.3V source. This is changed to now also include a 2.5V rail. show less

This ECN adds two capabilities by way of adding func...view more This ECN adds two capabilities by way of adding functions to the PCI Firmware Spec defined _DSM definition. show less

The backplane type (BP Type) signal was incompletely...view more The backplane type (BP Type) signal was incompletely specified in the original OCuLink 1.0 specification. Table 2-2 now includes a Type of logic used for this signal. A definition is provided for the logic levels of this signal. show less

a....view more a. The connector and cable assembly pinout tables have been revised to show the complete OCuLink pinout assignments in all cases. b. The two left-most columns in the cable pinout tables have been combined for clarity. c. Due to the fact that the pinout tables span multiple pages, P1/P2 designations have been included in the appropriate column titles of the cable pinout tables to make it easier to follow which end of the cable is being addressed on each page in each table. show less

The backplane type (BP Type) signal was incompletely...view more The backplane type (BP Type) signal was incompletely specified in the original OCuLink 1.0 specification. Table 2-2 now includes a Type of logic used for this signal. A definition is provided for the logic levels of this signal.  show less

a....view more a. The connector and cable assembly pinout tables have been revised to show the complete OCuLink pinout assignments in all cases. b. The two left-most columns in the cable pinout tables have been combined for clarity. c. Due to the fact that the pinout tables span multiple pages, P1/P2 designations have been included in the appropriate column titles of the cable pinout tables to make it easier to follow which end of the cable is being addressed on each page in each table.  show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

Defines mechanisms for simple storage enclosure mana...view more Defines mechanisms for simple storage enclosure management for NVMe SSDs, consistent with established capabilities in the storage ecosystem, with the first version of this capability defining a register interface for LED control. This ECN defines a new PCI Express extended capability called Native PCIe Enclosure Management (NPEM). show less

Provide an optional mechanism to indicate to softwar...view more Provide an optional mechanism to indicate to software the results of a hardware validation of Expansion ROM contents. show less

This ECN specifies changes to the PCI Local Bus Spec...view more This ECN specifies changes to the PCI Local Bus Specification Revision 3.0 and the PCI Express CEM Specification 3.0. Changes to the PCI Local Bus Specification cover a new VPD encoding and a 32-bit field. Changes to the PCI Express CEM Specification cover a series of graphs used to classify air flow impedance and thermal properties under varying conditions as well as the test figure and process to create these graphs for a given adapter add-in card. Adapter add-in card types supported by this include all SINGLE-SLOT and DUAL-SLOT PCIe CEM adapter add-in cards without integrated air movers, including standard height adapter add-in cards as well as low-profile adapter add-in cards). Adapter add-in cards with an integrated air mover were not addressed due to the added complication of their integrated air mover in the overall platform’s potential cooling redundancy. show less

Defines a new, optional PCI-SIG Defined Type 1 Vendo...view more Defines a new, optional PCI-SIG Defined Type 1 Vendor Defined Message. This message provides software and/or firmware, running on a Function, additional information to uniquely identify that Function, within a large system or a collection of systems. When a single system contains multiple PCI Express Hierarchies, this message tells a Function which Hierarchy it resides in. This value, in conjunction with the Routing ID number uniquely identifies a Function within that system. In clustered system, this message can include a System Globally Unique Identifier (System GUID) for each system. This value, in conjunction with the Hierarchy ID and Routing ID uniquely identifies a Function within that cluster. show less

M.2 Key B (WWAN) is modified to enable PCIe and USB ...view more M.2 Key B (WWAN) is modified to enable PCIe and USB 3.1 Gen1 signals to be simultaneously present on the connector. This enables support for a single SKU M.2 card that supports both PCIe and USB 3.1 Gen1. There are two implementation options enabled: 1. State #14 in the “Socket 2 Add-in Card Configuration Table” is re-defined to indicate an Add-in Card built to the PCI Express M.2 Specification, Revision 1.1 or later where both PCIe and USB 3.1 Gen1 are both present on the connector. The choice of Port Configuration is vendor defined. This enables the host to unambiguously determine that PCIe and USB 3.1 Gen1 are present on the connector. 2. States #4, 5, 6, 7 in the “Socket 2 Add-in Card Configuration Table” are re-defined to indicate that in addition to USB 3.1 Gen1, PCIe may be present on the connector. This definition was used by M.2 cards built to the PCI Express M.2 Specification, Revision 1.0 (USB 3.1 Gen1 on connector; PCIe is “no connect”). This definition is now also permitted to be used by M.2 cards built to PCI Express M.2 Specification, Revision 1.1 or later to indicate that PCIe and USB 3.1 Gen1 are both present on the connector. This allows GPIO port configurations to remain consistent with all other existing states. show less

This ECR is intended to address a class of issues wi...view more This ECR is intended to address a class of issues with PCI/PCIe architecture that relate to resource allocation inefficiency. To explain this, first we must define some terms: Static use cases, refer to scenarios where resources are allocated at system boot and then typically not changed again Dynamic use cases, refer to scenarios where run-time resource rebalancing (allocation of new resources, freeing of resources no longer needed) is required, due to hot add/remove, or by other needs. In the Static cases there are limits on the size of hierarchies and number of Endpoints due to the Bus & Device Number “waste” caused by the PCI/PCIe architectural definition for Switches, and by the requirement that Downstream Ports associate an entire Bus Number with their Link. This proposal addresses this class of problems by “flattening” the use of Routing IDs so that Switches and Downstream Ports are able to make more efficient use of the available space. show less

This proposal adds a new 11.5 mm x 13 mm PCIe BGA SS...view more This proposal adds a new 11.5 mm x 13 mm PCIe BGA SSD form factor to the M.2 v1.1 specification.  show less

A PCI Express Receiver is required to tolerate 6 ns ...view more A PCI Express Receiver is required to tolerate 6 ns of lane to lane skew when operating at 8.0 GT/s. The PCI Express OCuLink Specification allowed the cable assembly to consume the entire budget. The Transmitter and traces routing to the OCuLink connector need some of this budget. The PCI Express Card Electromechanical Specification Revision 3.0 assigns 1.6 ns to the total interconnect lane to lane skew budget. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini 3 Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in 4 both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and 5 higher integration of functions onto a single form factor module solution. show less

The M.2 form factor is intended for Mobile Adapters....view more The M.2 form factor is intended for Mobile Adapters. The M.2 is a natural transition from the Mini 3 Card and Half-Mini Card (refer to the PCI Express Mini CEM Specification) to a smaller form factor in 4 both size and volume. The M.2 is a family of form factors that enables expansion, contraction, and 5 higher integration of functions onto a single form factor module solution. show less

This specification defines an implementation for sma...view more This specification defines an implementation for small form factor PCI Express cards. The specification uses a qualified subset of the same signal protocol, electrical definitions, and configuration definitions as the PCI Express Base Specification, Revision 2.0. Where this specification 5 does not explicitly define PCI Express characteristics, the PCI Express Base Specification governs. show less

This specification defines an implementation for sma...view more This specification defines an implementation for small form factor PCI Express cards. The specification uses a qualified subset of the same signal protocol, electrical definitions, and configuration definitions as the PCI Express Base Specification, Revision 2.0. Where this specification 5 does not explicitly define PCI Express characteristics, the PCI Express Base Specification governs. show less

This is a modification of the cable assembly memory ...view more This is a modification of the cable assembly memory map defined in OCuLink 1.0, Appendix A. The addresses for the data bytes contained within the external cable assembly's memory will be reorganized. In addition, some data in these fields are modified. show less

Table 6-12 and Table 6-13 in Section 6.9 are modifie...view more Table 6-12 and Table 6-13 in Section 6.9 are modified to reflect connector requirements for server/datacenter segment. In addition, this proposal also reflects a clarification in the Introduction text, Section 1 to include the server/datacenter market segment. show less

Similar to, and based on, the Resizable BAR and Expa...view more Similar to, and based on, the Resizable BAR and Expanded Resizable BAR ECNs, this optional ECN adds a capability for PFs to be able to resize their VF BARs. This ECN is written with the expectation that the Expanded Resizable BAR ECN will have been released prior to this ECN’s release. This ECN supports all of the BAR sizes defined by both the Resizable BAR and Expanded Resizable BAR ECNs. show less

Update SR-IOV specification to reflect current PCI C...view more Update SR-IOV specification to reflect current PCI Code and ID Assignment Specification, regarding PCI capabilities and PCI-E extended capabilities. Clarify the requirements for VFs regarding the other Capabilities added by ECNs that should have updated the SR-IOV specification but did not. show less

MSI is enhanced to include an Extended Message Data ...view more MSI is enhanced to include an Extended Message Data Field for the function generating the interrupt. The MSI Capability Structure is modified to enable the new feature to be enabled/disabled; and a new Extended Message Data Field to be configured. This change only applies to MSI and not MSI-X. show less

The Resizable BAR capability currently allows BARs o...view more The Resizable BAR capability currently allows BARs of up to 512 GB (239), which allows address bits <38:0> to be passed into an Endpoint. This proposal extends resizable BARs to up to 263 bits, which supports the entire address space. show less

Definition of electrical eye limits (Eye Height and ...view more Definition of electrical eye limits (Eye Height and Eye Width) at the M.2 connector for SSIC host and device transmitter is proposed to be added in the specification. show less

This ECN implements a variety of spec modifications ...view more This ECN implements a variety of spec modifications intended to correct inconsistencies related to, and to support more consistent implementation of, Root Complex integrated Endpoints, with a particular focus on issues relating to Single Root IO Virtualization (SR-IOV). show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification.  show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification.  show less

This ECN defines two sets of related changes to supp...view more This ECN defines two sets of related changes to support an Emergency Power Reduction mechanism and to provide software visibility for this mechanism: 1. The Card Electromechanical Specification is updated to define an optional Emergency Power Reduction mechanism using RSVD pin B30. 2. The PCI Express Base Specification is updated to define an optional mechanism to indicate support for Emergency Power Reduction and to provide visibility as to the power reduction status of a Device. show less

This ECN is intended to define a new form-factor and...view more This ECN is intended to define a new form-factor and electrical pinout to the M.2 family. This proposal will allow PCIe and SATA to be delivered using a BGA package, expanding the use of the PCIe and SATA protocols in small form-factor applications. The new BGA pinout content is based on the Socket 3 Key-M definitions. BGA pinout supports additional pins than defined for Socket-3, for soldered-down form-factors. show less

This document is a companion Specification to the PC...view more This document is a companion Specification to the PCI Express Base Specification and other PCI Express® 2 documents listed in Section 1.1. The primary focus of the PCI Express OCuLink Specification is the implementation 3 of internal and external small form factor PCI Express® connectors and cables optimized for the client and mobile 4 market segments. This Specification discusses cabling and connector requirements to meet the 8.0 GT/s signaling 5 needs in the PCI Express Base Specification. 6 No assumptions are made regarding the implementation of PCI Express compliant components on either side of 7 the Link; such components are addressed in other PCI Express Specifications. show less

Define a Vendor-Specific Extended Capability that is...view more Define a Vendor-Specific Extended Capability that is not tied to the Vendor ID of the Component 5 or Function. This capability includes a Vendor ID that determines the interpretation of the remainder of the capability. It is otherwise similar to the existing Vendor-Specific Extended Capability. show less

This ECR describes the necessary changes to enable a...view more This ECR describes the necessary changes to enable a new WWAN Key C definition to be included as an addition to the existing spec. The intent is to create a dedicated WWAN socket Key and pinout definition. This new pinout definition will be focused on WWAN specific interfaces and needs.  show less

This document describes the hardware independent fir...view more This document describes the hardware independent firmware interface for managing PCI, PCI-X, and PCI Express systems in a host computer. show less

Add 2242 form factor for WWAN modules using Socket 2...view more Add 2242 form factor for WWAN modules using Socket 2 with key B. show less

In ECN “Power-up requirements for PCIe side bands (P...view more In ECN “Power-up requirements for PCIe side bands (PERST#, etc.)” - submitted by Dave Landsman and Ramdas Kachare - section 3.1.3.2.1 is redefined to provide a more realistic timing model for reset. show less

The proposed change is to include 2 GNSS Aiding sign...view more The proposed change is to include 2 GNSS Aiding signals, that we already have allocated in the Type 1216 pinout, to the Socket 1 Key E pinout and Type 2226/3026 pinout. Due to lack of free pins in the Key E pinout, it is proposed to define 2 SDIO Input signals as dual functional pins. They would be defined with their original SDIO functionality along with and alternate GNSS Aiding signals functionality to enable a GNSS solution on Type 2230 solutions on Socket 1 Key E solutions. The GNSS signals to be added are the Tx Blanking and SYSCLK signals and it is suggested to overlay them on the SDIO RESET# and SDIO CLK respectively which are also inputs. In this way it is less likely to cause a potential contention.  show less

Definition of two of the three COEX pins as a UART T...view more Definition of two of the three COEX pins as a UART Tx/Rx communication path between Socket 1 and Socket 2 in favor of WWAN ßà Connectivity coexistence. The intent is to definitively define the location of the source and sink sides of the signal path.  show less

The proposed change is to change the current voltage...view more The proposed change is to change the current voltage level of the NFC related signals (I2C DATA, I2C CLK and ALERT#) on the Connectivity pinouts and definitions from 3.3V to 1.8V signal level to better align with future platforms operating signal levels typical in the industry.  show less

Provide specification for Physical Layer protocol aw...view more Provide specification for Physical Layer protocol aware Retimers for PCI Express 3.0/3.1. show less

Section 3.1.3.2.1 is redefined to provide a more rea...view more Section 3.1.3.2.1 is redefined to provide a more realistic timing model for reset. show less

Definition of the four Audio pins to provide definit...view more Definition of the four Audio pins to provide definitive functions assigned to each pin of the Audio interface. show less

SMBus interface signals are included in sections 3.2...view more SMBus interface signals are included in sections 3.2 and 3.3 and related minor clarifications added to sections 1.2, 1.3, 2.2, 4.1, 4.2, 5.2.2, and 5.3. show less

Mobile broadband peak data rates continue to increas...view more Mobile broadband peak data rates continue to increase. With LTE category 5, USB 2.0 will not meet the performance requirements. LTE category 5 peak data rates are 320 Mbps downlink; 75 Mbps uplink. Most USB 2.0 implementations achieve a maximum of about 240 Mbps throughput. Looking longer term, the ITU has set a target of 1 Gbits/s for low mobility applications for IMT Advanced. show less

This ECN accomplishes two housekeeping tasks associa...view more This ECN accomplishes two housekeeping tasks associated with DLLP encoding. show less

Modifies specifications to provide revised JTOL curv...view more Modifies specifications to provide revised JTOL curve for SRIS mode and provides additional frequency domain constraint of SSC profile jitter on reference clocks. show less

Modify the Mini Card specification to tighten the po...view more Modify the Mini Card specification to tighten the power rail voltage tolerance. show less

Modifies the limits used by the PLL bandwidth test t...view more Modifies the limits used by the PLL bandwidth test to allow guardband for a single PLL test solution to be used at PCI-SIG compliance workshops without impacting pass/fail results for member companies. show less

The M.2 form factor is used for Mobile Add-In cards....view more The M.2 form factor is used for Mobile Add-In cards. The M.2 is a natural transition from the Mini Card and Half-Mini Card to a smaller form factor in both size and volume. The M.2 is a family of form factors that will enable expansion, contraction, and higher integration of functions onto a single form factor module solution. show less

This ECN affects the PCI Firmware Specification v3.1...view more This ECN affects the PCI Firmware Specification v3.1 and allows certain errors to be suppressed by platform if software stack ensured error containment. Also removes the implementation note in section 4.5.2.4 which is not representative of OS behavior. show less

Defines mechanisms to reduce the time software need...view more  Defines mechanisms to reduce the time software needs to wait before issuing a Configuration Request to a PCIe Function or RC-integrated PCI Function following power on, reset, or power state transitions. show less

This test specification primarily covers tests of PC...view more This test specification primarily covers tests of PCI Express platform firmware for features critical to PCI Express. This specification does not include the complete set of tests for a PCI Express System. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building add-in cards or system boards to the PCI Express Card Electromechanical Specification 3.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This document primarily covers PCI Express testing o...view more This document primarily covers PCI Express testing of all defined PCI Express Device Types and RCRBs for the standard Configuration Space mechanisms, registers, and features in Chapter 6 of the PCI Local Bus Specification and Chapter 7 of the PCI Express Base Specification (some additional tested registers are described in other specifications that are referenced in the individual test description). show less

This test specification primarily covers testing of ...view more This test specification primarily covers testing of PCI Express Device and Port types for compliance with the link layer and transaction layer requirements of the PCI Express Base Specification. Device and Port types that do not have a link (e.g., Root Complex Integrated Endpoints, Root Complex Event Collectors) are not tested under this test specification. At this point, this test specification does not describe the full set of PCI Express tests for all link layer or transaction layer requirements. show less

This ECR defines an optional mechanism, that establ...view more  This ECR defines an optional mechanism, that establishes, depending on implementation, one or more substates of the L1 Link state, which allow for dramatically lower idle power, including near complete removal of power for high speed circuits. show less

This ECR defines a new logical layer mapping of PCI ...view more This ECR defines a new logical layer mapping of PCI Express over the MIPI Alliance M-PHY1 specification. show less

Defines an optional-normative Precision Time Measure...view more Defines an optional-normative Precision Time Measurement (PTM) capability. To accomplish this, Precision Time Measurement defines a new protocol of timing measurement/synchronization messages and a new capability structure. show less

Provide specifications to enable separate Refclk wit...view more Provide specifications to enable separate Refclk with Independent Spread Spectrum Clocking (SSC) architecture. show less

The PCI Express 3.0 describes a method to simulate 8...view more The PCI Express 3.0 describes a method to simulate 8GT/s channel compliance using a statistical data eye simulator. To help members perform this simulation, a free open source tool called Seasim is provided below. This tool has been tested by members of the Electrical Working Group on multiple channels and has reached version 0.54 which should be useful for members designing 8GT/s systems.   show less

Change the Sub-Class assignment for Root Complex Eve...view more Change the Sub-Class assignment for Root Complex Event Collector from 06h to 07h. show less

This optional normative ECN defines enhancements to ...view more This optional normative ECN defines enhancements to the Downstream Port Containment (DPC) ECN, an ECN that enabled automatic disabling of the Link below a Downstream Port following an uncorrectable error. The DPC ECN defined functionality for both Switch Downstream Ports and Root Ports. This ECN mostly defines functionality that is specific to Root Ports, functionality referred to as “RP Extensions for DPC”. show less

This document primarily covers PCI Express testing o...view more This document primarily covers PCI Express testing of root complexes, switches, bridges, and endpoints for the standard configuration mechanisms, registers, and features in Chapter 7 of the PCI Express Base Specification, Revision 2.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This document primarily covers PCI Express testing o...view more This document primarily covers PCI Express testing of root complexes, switches, bridges, and endpoints for the standard configuration mechanisms, registers, and features in Chapter 7 of the PCI Express Base Specification, Revision 2.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This document provides test descriptions for PCI Exp...view more This document provides test descriptions for PCI Express electrical testing. It is relevant for anyone building add-in cards or system boards to the PCI Express Card Electromechanical Specification, Revision 2.0. This specification does not describe the full set of PCI Express tests and assertions for these devices.  show less

This test specification primarily covers testing of ...view more This test specification primarily covers testing of all PCI Express Port types for compliance with the link layer requirements in Chapter 3 of the PCI Express Base Specification. At this point, this specification does not describe the full set of PCI Express tests for all link layer requirements. Going forward, as the testing gets mature, it is expected that more tests may be added as deemed necessary. show less

This is a companion specification to the PCI Express...view more This is a companion specification to the PCI Express Base Specification. Its primary focus is the implementation of cabled PCI Express®. The discussions are confined to copper cabling and their connector requirements to meet the PCI Express signaling needs at 5.0 GT/s. No assumptions are made regarding the implementation of PCI Express compliant Subsystems on either side of the cabled Link; e.g., PCI Express Card Electromechanical (CEM), ExpressCard5 ™, ExpressModule™, PXI Express™, system board, or any other form factor. Such form factors are covered in other separate specifications. show less

This is a companion specification to the PCI Express...view more This is a companion specification to the PCI Express Base Specification. Its primary focus is the implementation of cabled PCI Express®. The discussions are confined to copper cabling and their connector requirements to meet the PCI Express signaling needs at 5.0 GT/s. No assumptions are made regarding the implementation of PCI Express compliant Subsystems on either side of the cabled Link; e.g., PCI Express Card Electromechanical (CEM), ExpressCard5 ™, ExpressModule™, PXI Express™, system board, or any other form factor. Such form factors are covered in other separate specifications. show less

Modify the PCI Express Mini Card specification to de...view more Modify the PCI Express Mini Card specification to define a new interface for tunable antennas. Modify the PCI Express Mini Card specification to enable existing coexistence signals to operate simultaneously with new tuneable antenna control signals. show less

This specification defines an implementation for sma...view more This specification defines an implementation for small form factor PCI Express cards. The specification uses a qualified sub-set of the same signal protocol, electrical definitions, and configuration definitions as the PCI Express Base Specification, Revision 2.0. Where this specification does not explicitly define PCI Express characteristics, the PCI Express Base Specification governs. show less

This specification defines an implementation for sma...view more This specification defines an implementation for small form factor PCI Express cards. The specification uses a qualified sub-set of the same signal protocol, electrical definitions, and configuration definitions as the PCI Express Base Specification, Revision 2.0. Where this specification does not explicitly define PCI Express characteristics, the PCI Express Base Specification governs. show less

This ECN defines a new error containment mechanism f...view more This ECN defines a new error containment mechanism for Downstream Ports as well as minor enhancements that improve asynchronous card removal. Downstream Port Containment (DPC) is the automatic disabling of the Link below a Downstream Port following an uncorrectable error. This prevents the potential spread of data corruption (all TLPs subsequent to the error are prevented from propagating either Upstream or Downstream) and enables error recovery if supported by software. show less

This optional normative ECN defines a simple protoco...view more This optional normative ECN defines a simple protocol where a device can register interest in one or more cachelines in host memory, and later be notified via a hardware mechanism when any registered cachelines are updated. show less

Receivers that operate at 8.0 GT/s with an impedance...view more Receivers that operate at 8.0 GT/s with an impedance other than the range defined by the ZRX-DC parameter for 2.5 GT/s (40-60 Ohms) must meet additional behavior requirements in the following LTSSM states: Polling, Rx_L0s, L1, L2, and Disabled. show less

The Process Address Space ID (PASID) ECN to the Base...view more The Process Address Space ID (PASID) ECN to the Base PCI Express Specification defines the PASID TLP Prefix. This companion ECN is optional normative and defines PASID TLP Prefix usage rules for ATS and PRI. show less

This optional normative ECN defines an End-End TLP P...view more This optional normative ECN defines an End-End TLP Prefix for conveying additional attributes associated with a request. The PASID TLP Prefix is an End-End TLP Prefix as defined in the PCI Express Base Specification. Routing elements that support End-End TLP Prefixes (i.e. have the End-End TLP Prefix Supported bit Set in the Device Capabilities 2 register) can correctly forward TLPs containing a PASID TLP Prefix. show less

This document describes the hardware independent fir...view more This document describes the hardware independent firmware interface for managing PCI™, PCI-X, and PCI Express® systems in a host computer. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This ECR requests making a change to the CLKREQ# ass...view more This ECR requests making a change to the CLKREQ# asserted low to clock active timing when latency tolerance reporting is supported and enabled for the function. The change would be to allow this specified value to exceed 400ns up to a limit consistent with the latency value established by the Latency Tolerance Reporting (LTR) mechanism. show less

This involves a minor upward compatible change in Ch...view more This involves a minor upward compatible change in Chapter 3, Chapter 4 and a new Appendix T. show less

This change allows for all Root Ports with the End-...view more  This change allows for all Root Ports with the End-End TLP Prefix Supported bit Set to have different values for the Max End-End TLP Prefixes field in the Device Capabilities 2 register. It also changes and clarifies error handling for a Root Port receiving a TLP with more End-End TLP Prefixes than it supports. show less

This ECN is for the functional addition of a second ...view more This ECN is for the functional addition of a second wireless disable signal (W_DISABLE2#) as a new definition of Pin 51 (Reserved). When this optional second wireless disable signal is not implemented by the system, the original intent of a single wireless disable signal disabling all radios on the add-in card when asserted is still required. show less

A number of PCIe base specifications ECNs have been ...view more A number of PCIe base specifications ECNs have been approved that require software support. In some cases, platform firmware needs to know if the OS running supports certain features, or the OS needs to be able to request control of certain features from platform firmware. In other cases, the OS needs to know information about the platform that cannot be discovered through PCI enumeration, and ACPI must be used to supply the additional information.  show less

The purpose of this document is to specify PCI™ I/O ...view more The purpose of this document is to specify PCI™ I/O virtualization and sharing technology. The specification is focused on single root topologies; e.g., a single computer that supports virtualization technology. show less

The purpose of this document is to specify PCI™ I/O ...view more The purpose of this document is to specify PCI™ I/O virtualization and sharing technology. The specification is focused on single root topologies; e.g., a single computer that supports virtualization technology. show less

ECR covers proposed modification of Section 4.2 Pow...view more  ECR covers proposed modification of Section 4.2 Power Consumption within the CEM Specification version 2.0. show less

Prior to this ECN, all PCIe external Links were requ...view more Prior to this ECN, all PCIe external Links were required to support ASPM L0s. This ECN changes the Base Specification to permit ASPM L0s support to be optional unless the applicable formfactor specification explicitly requires it. show less

This ECR proposes to add a new mechanism for platfor...view more This ECR proposes to add a new mechanism for platform central resource (RC) power state information to be communicated to Devices. This mechanism enables Optimized Buffer Flush/Fill (OBFF) by allowing the platform to indicate optimal windows for device bus mastering & interrupt activity. Devices can use internal buffering to shape traffic to fit into these optimal windows, reducing platform power impact. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This specification describes the extensions required...view more This specification describes the extensions required to allow PCI Express Devices to interact with an address translation agent (TA) in or above a Root Complex (RC) to enable translations of DMA addresses to be cached in the Device. The purpose of having an Address Translation Cache (ATC) in a Device is to minimize latency and to provide a scalable distributed caching solution that will improve I/O performance while alleviating TA resource pressure. This specification must be used in conjunction with the PCI Express Base Specification, Revision 1.1, and associated ECNs. show less

Emerging usage model trends indicate a requirement f...view more Emerging usage model trends indicate a requirement for increase in header size fields to provide additional information than what can be accommodated in currently defined TLP header sizes. The TLP Prefix mechanism extends the header size by adding DWORDS to the front of headers that carry additional information. show less

This ECN modifies the system board transmitter path ...view more This ECN modifies the system board transmitter path requirements (VTXS and VTXS_d) at 5 GT/s. As a consequence the minimum requirements for the add-in card receiver path sensitivity at 5 GT/s are also updated. show less

This optional normative ECR defines a mechanism by w...view more This optional normative ECR defines a mechanism by which a Requester can provide hints on a per transaction basis to facilitate optimized processing of transactions that target Memory Space. The architected mechanisms may be used to enable association of system processing resources (e.g. caches) with the processing of Requests from specific Functions or enable optimized system specific (e.g. system interconnect and Memory) processing of Requests. show less

The change allows a Function to use Extended Tag fie...view more The change allows a Function to use Extended Tag fields (256 unique tag values) by default; this is done by allowing the Extended Tag Enable control field to be set by default. show less

This document primarily covers PCI Express testing o...view more This document primarily covers PCI Express testing of root complexes, switches, bridges, and endpoints for the standard configuration mechanisms, registers, and features in Chapter 7 of the PCI Express Base Specification, Revision 2.0. This specification does not describe the full set of PCI Express tests and assertions for these devices. show less

This ECR proposes to add a new mechanism for Endpoin...view more This ECR proposes to add a new mechanism for Endpoints to report their service latency requirements for Memory Reads and Writes to the Root Complex such that central platform resources (such as main memory, RC internal interconnects, snoop resources, and other resources associated with the RC) can be power managed without impacting Endpoint functionality and performance. show less

This document contains a list of Test Assertions and...view more This document contains a list of Test Assertions and a set of Test Definitions pertaining to the Transaction Layer. Assertions are statements of spec requirements which are measured by the algorithm details as specified in the Test Definitions. “Basic Functional Tests” are Test Algorithms which perform basic tests for key elements of Transaction Layer device functionality. This document does not describe a full set of PCI Express tests and assertions and is in no way intended to measure products for full design validation. Tests described here should be viewed as tools to checkpoint the result of product validation – not as a replacement for that effort. show less

This ECN proposes to add a new ordering attribute wh...view more This ECN proposes to add a new ordering attribute which devices may optionally support to provide enhanced performance for certain types of workloads and traffic patterns. The new ordering attribute relaxes ordering requirements between unrelated traffic by comparing the Requester/Completer IDs of the associated TLPs. show less

DPA (Dynamic Power Allocation) extends existing PCIe...view more DPA (Dynamic Power Allocation) extends existing PCIe device power management to provide active (D0) device power management substates for appropriate devices, while comprehending existing PCIe PM Capabilities including PCI-PM and Power Budgeting. show less

The purpose of this document is to specify PCI® I/O ...view more The purpose of this document is to specify PCI® I/O virtualization and sharing technology. The specification is focused on multi-root topologies; e.g., a server blade enclosure that uses a PCI Express® Switch-based topology to connect server blades to PCI Express Devices or PCI Express to-PCI Bridges and enable the leaf Devices to be serially or simultaneously shared by one or more System Images (SI). Unlike the Single Root IOV environment, independent SI may execute on disparate processing components such as independent server blades. show less

This optional normative ECN adds Multicast functiona...view more This optional normative ECN adds Multicast functionality to PCI Express by means of an Extended Capability structure for applicable Functions in Root Complexes, Switches, and components with Endpoints. The Capability structure defines how Multicast TLPs are identified and routed. It also provides means for checking and enforcing send permission with Function-level granularity. The ECN identifies Multicast errors and adds an MC Blocked TLP error to AER for reporting those errors. show less

PCI Express (PCIe) defines error signaling and loggi...view more PCI Express (PCIe) defines error signaling and logging mechanisms for errors that occur on a PCIe interface and for errors that occur on behalf of transactions initiated on PCIe. It does not define error signaling and logging mechanisms for errors that occur within a component or are unrelated to a particular PCIe transaction. show less

This optional ECN adds a capability for Functions wi...view more This optional ECN adds a capability for Functions with BARs to report various options for sizes of their memory mapped resources that will operate properly. Also added is an ability for software to program the size to configure the BAR to. show less

This optional normative ECN defines 3 new PCIe trans...view more This optional normative ECN defines 3 new PCIe transactions, each of which carries out a specific Atomic Operation (“AtomicOp”) on a target location in Memory Space. The 3 AtomicOps are FetchAdd (Fetch and Add), Swap (Unconditional Swap), and CAS (Compare and Swap). FetchAdd and Swap support operand sizes of 32 and 64 bits. CAS supports operand sizes of 32, 64, and 128 bits. show less

The main objective of this specification is to suppo...view more The main objective of this specification is to support PCI Express® add-in cards that require higher power than specified in the PCI Express Card Electromechanical Specification and the PCI Express x16 Graphics 150W-ATX Specification. show less

This specification defines an implementation for sma...view more This specification defines an implementation for small form factor PCI Express cards. The specification uses a qualified sub-set of the same signal protocol, electrical definitions, and configuration definitions as the PCI Express Base Specification, Revision 1.1. Where this specification does not explicitly define PCI Express characteristics, the PCI Express Base Specification governs. show less

This specification defines an implementation for sma...view more This specification defines an implementation for small form factor PCI Express cards. The specification uses a qualified sub-set of the same signal protocol, electrical definitions, and configuration definitions as the PCI Express Base Specification, Revision 1.1. Where this specification does not explicitly define PCI Express characteristics, the PCI Express Base Specification governs. show less

The purpose of this document is to specify PCI™ I/O ...view more The purpose of this document is to specify PCI™ I/O virtualization and sharing technology. The specification is focused on single root topologies; e.g., a single computer that supports virtualization technology. show less

For virtualized and non-virtualized environments, a ...view more For virtualized and non-virtualized environments, a number of PCI-SIG member companies have requested that the current constraints on number of Functions allowed per multi-Function Device be increased to accommodate the needs of next generation I/O implementations. This ECR specifies a new method to interpret the Device Number and Function Number fields within Routing IDs, Requester IDs, and Completer IDs, thereby increasing the number of Functions that can be supported by a single Device. show less

This specification is a companion for the PCI Expres...view more This specification is a companion for the PCI Express Base Specification, Revision 2.0. Its primary focus is the implementation of an evolutionary strategy with the current PCI™ desktop/server mechanical and electrical specifications. The discussions are confined to ATX or ATX-based form factors. Other form factors, such as PCI Express® Mini Card are covered in other separate specifications. show less

This specification is a companion for the PCI Expres...view more This specification is a companion for the PCI Express Base Specification, Revision 2.0. Its primary focus is the implementation of an evolutionary strategy with the current PCI™ desktop/server mechanical and electrical specifications. The discussions are confined to ATX or ATX-based form factors. Other form factors, such as PCI Express® Mini Card are covered in other separate specifications. show less

This specification describes the extensions required...view more This specification describes the extensions required to allow PCI Express Devices to interact with an address translation agent (TA) in or above a Root Complex (RC) to enable translations of DMA addresses to be cached in the Device. The purpose of having an Address Translation Cache (ATC) in a Device is to minimize latency and to provide a scalable distributed caching solution that will improve I/O performance while alleviating TA resource pressure. This specification must be used in conjunction with the PCI Express Base Specification, Revision 1.1, and associated ECNs. show less

This is a companion specification to the PCI Express...view more This is a companion specification to the PCI Express Base Specification. Its primary focus is the implementation of cabled PCI Express®. The discussions are confined to copper cabling and their connector requirements to meet the PCI Express signaling needs at 2.5 GT/s. No assumptions are made regarding the implementation of PCI Express compliant Subsystems on either side of the cabled Link; e.g., PCI Express Card Electromechanical (CEM), ExpressCard™, ExpressModule™, PXI Express™, system board, or any other form factor. Such form factors are covered in other separate specifications. show less

This specification describes the PCI Express® archit...view more This specification describes the PCI Express® architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express Specification. show less

This ECN rectifies the differences between the DMTF ...view more This ECN rectifies the differences between the DMTF SM CLP Specification and its supporting documents with the current PCI Firmware 3.0 Specification. Also, it clarifies the supporting documents required for successfully implementing CLP in an X86 PCI FW 3.0 compatible option ROM. show less

This ECN attempts to make clarifications such that t...view more This ECN attempts to make clarifications such that the system firmware and multiple operating systems can have the same interpretation of the specification and work interoperably. show less

This ECN adds a function to the _DSM Definitions for...view more This ECN adds a function to the _DSM Definitions for PCI to provide an indication to an operating system that it can ignore the PCI boot configuration setup by the firmware during system initialization.  show less

This document describes the hardware independent fir...view more This document describes the hardware independent firmware interface for managing PCI, PCI-X, and PCI Express™ systems in a host computer. show less

This specification is a companion for the PCI Expres...view more This specification is a companion for the PCI Express Base Specification, Revision 1.1. Its primary focus is the implementation of an evolutionary strategy with the current PCI desktop/server mechanical and electrical specifications. The discussions are confined to ATX or ATX-based form factors. Other form factors, such as PCI Express Mini Card are covered in other separate specifications. show less

This specification is a companion for the PCI Expres...view more This specification is a companion for the PCI Express Base Specification, Revision 1.1. Its primary focus is the implementation of an evolutionary strategy with the current PCI desktop/server mechanical and electrical specifications. The discussions are confined to ATX or ATX-based form factors. Other form factors, such as PCI Express Mini Card are covered in other separate specifications. show less

This specification describes the PCI Express archite...view more This specification describes the PCI Express architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express specification. show less

This specification describes the PCI Express archite...view more This specification describes the PCI Express architecture, interconnect attributes, fabric management, and the programming interface required to design and build systems and peripherals that are compliant with the PCI Express specification. show less

This document is a companion specification to the PC...view more This document is a companion specification to the PCI Express Base Specification. Its primary focus is the implementation of a modular I/O form factor that is focused on the needs of workstations and servers from mechanicals and electrical requirements. The discussions are confined to the modules and their chassis slots requirements. Other form factors are covered in other separate specifications. show less

The objectives of this specification are Support for...view more The objectives of this specification are Support for PCI Express™ graphics add-in cards that are higher power than specified in the PCI Express Card Electromechanical Specification, Forward looking for future scalability, Allow evolution of the PC architecture including graphics, Upgradeability, and Enhanced end user experience. show less

This addendum to the PCI Express Base 1.0a describes...view more This addendum to the PCI Express Base 1.0a describes a low power extension intended primarily to support the reduced power requirements of mobile platforms. Its scope is restricted to the electrical layer and corresponds to Section 4.3 of PCI Express Base 1.0a. show less

...view more This specification describes the PCI Express to PCI/PCI-X bridge (also referred to herein as PCI Express bridge) architecture, interface requirements, and the programming model. show less