Pci Express; Pcie Supported Configurations In Mobile Products - Intel 2ND GENERATION CORE PROCESSOR FAMILY MOBILE - DATASHEET VOLUME 1 01-2011 Datasheet

• Up to 32 simultaneous open pages, 16 per channel (assuming 4 Ranks of 8 Bank
Devices)
• Memory organizations
— Single-channel modes
— Dual-channel modes - Intel
- Dual-channel symmetric (Interleaved)
• Command launch modes of 1n/2n
• On-Die Termination (ODT)
• Asynchronous ODT
®
• Intel
— Just-in-Time Command Scheduling
— Command Overlap
— Out-of-Order Scheduling
1.2.2

PCI Express*

• The PCI Express* port(s) are fully-compliant to the PCI Express Base Specification,
Revision 2.0.
• Processor with mobile PCH supported configurations
Table 1-1.

PCIe Supported Configurations in Mobile Products

Configuration
• The port may negotiate down to narrower widths
— Support for x16/x8/x4/x1 widths for a single PCI Express mode
• 2.5 GT/s and 5.0 GT/s PCI Express* frequencies are supported
• Gen1 Raw bit-rate on the data pins of 2.5 GT/s, resulting in a real bandwidth per
pair of 250 MB/s given the 8b/10b encoding used to transmit data across this
interface. This also does not account for packet overhead and link maintenance.
• Maximum theoretical bandwidth on the interface of 4 GB/s in each direction
simultaneously, for an aggregate of 8 GB/s when x16 Gen 1
• Gen 2 Raw bit-rate on the data pins of 5.0 GT/s, resulting in a real bandwidth per
pair of 500 MB/s given the 8b/10b encoding used to transmit data across this
interface. This also does not account for packet overhead and link maintenance.
• Maximum theoretical bandwidth on the interface of 8 GB/s in each direction
simultaneously, for an aggregate of 16 GB/s when x16 Gen 2
• Hierarchical PCI-compliant configuration mechanism for downstream devices
• Traditional PCI style traffic (asynchronous snooped, PCI ordering)
14
Fast Memory Access (Intel
Mobile
1x8 GFX,
2x4 I/O
GFX,
2x8
I/O
GFX,
1x16
I/O
®
Flex Memory Technology:
®
FMA)
Introduction
Datasheet, Volume 1