Intel CW8064701487007 Datasheet download pdf (Page 14)

Introduction

14 Datasheet, Volume 1

• Processor on-die Reference Voltage (VREF) generation for both DDR3 Read

(RDVREF) and Write (VREFDQ)

• 1Gb, 2Gb, and 4Gb DDR3 DRAM device technologies are supported

— Using 4Gb DRAM device technologies, the largest memory capacity possible is

GB, assuming Dual Channel Mode with four x8 dual ranked DIMM memory

configuration

• Up to 64 simultaneous open pages, 32 per channel (assuming 8 ranks of 8 bank

devices)

• Command launch modes of 1N/2N

• On-Die Termination (ODT)

• Asynchronous ODT

• Intel

Fast Memory Access (Intel

FMA):

— Just-in-Time Command Scheduling

— Command Overlap

— Out-of-Order Scheduling

1.2.2 PCI Express*

• The PCI Express* lanes (PEG[15:0] TX and RX) are fully-compliant to the PCI

Express Base Specification, Revision 3.0, including support for 8.0 GT/s transfer

speeds.

• PCI Express* supported configurations in mobile products

• The port may negotiate down to narrower widths

— Support for x16/x8/x4/x2/x1 widths for a single PCI Express* mode

• 2.5 GT/s, 5.0 GT/s and 8.0 GT/s PCI Express* frequencies are supported

• Gen1 Raw bit-rate on the data pins 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

• Gen 3 raw bit-rate on the data pins of 8.0 GT/s, resulting in a real bandwidth per

pair of 984 MB/s using 128b/130b encoding to transmit data across this interface.

This also does not account for packet overhead and link maintenance.

• Maximum theoretical bandwidth on the interface of 16 GB/s in each direction

simultaneously, for an aggregate of 32 GB/s when x16 Gen 3

• Hierarchical PCI-compliant configuration mechanism for downstream devices

• Traditional PCI style traffic (asynchronous snooped, PCI ordering)

Configuration Organization Mobile

1x8

Graphics, I/O

2x4

2 2x8 Graphics, I/O

3 1x16 Graphics, I/O

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 171 172

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Intel CW8064701487007 Datasheet Page 14

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