KC82870DH S L5X2 Intel, KC82870DH S L5X2 Datasheet - Page 3

• Manufacturer Part Number: KC82870DH S L5X2
• Manufacturer: Intel

Specifications of KC82870DH S L5X2

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Contents
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Intel
®
E8870DH DDR Memory Hub (DMH) Datasheet
Overview .........................................................................................................................1-1
1.1
1.2
1.3
1.4
1.5
Signal Description ...........................................................................................................2-1
2.1
2.2
2.3
2.4
Registers .........................................................................................................................3-1
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
Functional Description.....................................................................................................4-1
4.1
4.2
4.3
4.4
System Architecture ...........................................................................................1-1
Supported Memory Configurations.....................................................................1-2
1.2.1
Terminology........................................................................................................1-3
Reference Documents........................................................................................1-4
Revision History .................................................................................................1-4
Main Channel Interface ......................................................................................2-1
Branch Channel Interface...................................................................................2-2
Reset and Test Signals ......................................................................................2-3
Voltage References............................................................................................2-4
Gen – General Purpose Register .......................................................................3-1
DSTIM – DIMM Strobe Timing Register.............................................................3-1
MCTIM – Main Channel Timing Register ...........................................................3-3
BCTIM – Branch Channel Timing Register ........................................................3-4
DGR – DIMM Geometry Register.......................................................................3-5
MRF – Mode Register Set Function Register.....................................................3-5
SDI – SDRAM Initialization Register ..................................................................3-6
RCC – RAMBUS Current Control Register ........................................................3-7
RIR – RAC Initialization Register .......................................................................3-7
SPD – Serial Presence Detect Status Register..................................................3-8
PWR – Power Up Control Register ...................................................................3-9
VID – Vendor Identification Register ................................................................3-10
RID – Revision Identification Register..............................................................3-10
MUARS – DMH Unified Access Register Select ..............................................3-10
MUARD – DMH Unified Access Register Data ................................................3-11
3.15.1 DMH Unified Access Registers ...........................................................3-11
SPDID – SPD Device ID Register ....................................................................3-13
DID – Device Identification Register.................................................................3-13
Operation Overview............................................................................................4-1
Main Channel to Branch Channel Translation....................................................4-2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
DMH Time Synchronization Packet....................................................................4-4
Main Channel Periodic Calibration .....................................................................4-5
4.4.1
4.4.2
Memory Capacity ..................................................................................1-2
MCP Format and Timing .......................................................................4-3
MCP Command Type Field ...................................................................4-3
MCP for DIMM Activate Command .......................................................4-3
MCP for DIMM Read/Write Command ..................................................4-4
MCP for Extended Commands..............................................................4-4
Current Calibration ................................................................................4-5
Temperature Calibration........................................................................4-5
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