Contents

 

4.10.9

SVID – Subsystem Vendor Identification Register

97

 

4.10.10

ID – Subsystem Identification Register

97

 

4.10.11

CAPPTR – Capabilities Pointer Register

98

 

4.10.12 HPLLCC – HPLL Clock Control Register (Device #0)

98

4.11

Intel® 82854 GMCH Integrated Graphics Device Registers (Device #2, Function #0)

100

 

4.11.1

VID – Vendor Identification Register (Device #2)

101

 

4.11.2

DID – Device Identification Register (Device #2)

101

 

4.11.3

PCICMD – PCI Command Register (Device #2)

102

 

4.11.4

PCISTS – PCI Status Register (Device #2)

103

 

4.11.5

RID – Revision Identification Register (Device #2)

103

 

4.11.6

CC – Class Code Register (Device #2)

104

 

4.11.7

CLS – Cache Line Size Register (Device #2)

104

 

4.11.8

MLT – Master Latency Timer Register (Device #2)

104

 

4.11.9

HDR – Header Type Register (Device #2)

105

 

4.11.10 GMADR – Graphics Memory Range Address Register (Device #2)

105

 

4.11.11 MMADR – Memory Mapped Range Address Register (Device #2)

106

 

4.11.12 IOBAR – I/O Base Address Register (Device #2)

106

 

4.11.13 SVID – Subsystem Vendor Identification Register (Device #2)

107

 

4.11.14 SID – Subsystem Identification Register (Device #2)

107

 

4.11.15 ROMADR – Video BIOS ROM Base Address Registers (Device #2)

107

 

4.11.16 INTRLINE – Interrupt Line Register (Device #2)

108

 

4.11.17 INTRPIN – Interrupt Pin Register (Device #2)

108

 

4.11.18 MINGNT – Minimum Grant Register (Device #2)

108

 

4.11.19 MAXLAT – Maximum Latency Register (Device #2)

109

 

4.11.20 PMCAP – Power Management Capabilities Register (Device #2)

109

 

4.11.21 PMCS – Power Management Control/Status Register (Device #2)

110

5.0 Intel® 82854 GMCH System Address Map

111

5.1

System Memory Address Ranges

111

5.2

DOS Compatibility Area

112

5.3

Extended System Memory Area

114

5.4

Main System Memory Address Range (0010_0000h to Top of Main Memory)

115

 

5.4.1

15 MB-16 MB Window

115

 

5.4.2

Pre-allocated System Memory

115

 

5.4.3

System Management Mode (SMM) Memory Range

118

 

5.4.4

System Memory Shadowing

119

 

5.4.5

I/O Address Space

119

 

5.4.6

GMCH Decode Rules and Cross-Bridge Address Mapping

120

 

5.4.7

Hub Interface Decode Rules

121

6.0 Functional Description

123

6.1

Host Interface Overview

123

6.2

Dynamic Bus Inversion

123

 

6.2.1

System Bus Interrupt Delivery

123

 

6.2.2

Upstream Interrupt Messages

124

6.3

System Memory Interface

124

 

6.3.1

DDR SDRAM Interface Overview

124

 

6.3.2

System Memory Organization and Configuration

124

 

6.3.3

DDR SDRAM Performance Description

125

6.4

Integrated Graphics Overview

126

D15343-003

5

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Intel D15343-003 manual 10.9