82845PE Datasheet, PDF (47/176 Pages) Intel Corporation – 82845GE Graphics and Memory Controller Hub (GMCH) and 82845PE Memory Controller Hub (MCH)

Register Description
Table 3-1. DRAM Controller/Host-Hub Register Address Map (Device 0) (Sheet 2 of 2)
Address
Offset
90–96h
97h
98–9Ch
9D
9E
9Fh
A0–A3h
A4–A7h
A8–ABh
AC–AFh
B0–B3h
B4h
B5–B7h
B8–BBh
BCh
BDh
BE–C5h
C6–C7h
C8–C9h
CA–CBh
CC–CDh
CE–CFh
D0–DDh
DE–DFh
E0–E3h
E4–E8h
E9–FFh
Symbol
PAM[0:6]
FDHC
—
SMRAM
ESMRAMC
—
ACAPID
AGPSTAT
AGPCMD
—
AGPCTRL
APSIZE
—
ATTBASE
AMTT
LPTT
—
GMCHCFG
ERRSTS
ERRCMD
SMICMD
SCICMD
—
SKPD
—
CAPREG
—
Register Name
Default Value
Access
Programmable Attribute Map
00h
Fixed SDRAM Hole Control
00h
Intel Reserved
—
System Management RAM Control
02h
Extended System Management RAM Control
38h
Intel Reserved
AGP Capability Identifier
AGP Status
AGP Command
Intel Reserved
AGP Control
Aperture Size
Intel Reserved
Aperture Translation Table
AGP MTT Control R
AGP Low Priority Transaction Timer
Intel Reserved
—
0020 0002h
1F00 0217h
0000 0000h
—
0000 0000h
00h
—
00000000h
10h
10h
—
GMCH/MCH Configuration
0C01h
Error Status
Error Command
SMI Command
SCI Command
Intel Reserved
Scratchpad Data
Intel Reserved
Capability Identification
Intel Reserved
0000h
0000h
0000h
0000h
—
0000h
—
0x_x105_A009h
—
RO, R/W
RO, R/W
—
RO, R/W, L
RO, R/W,
RWC, L
—
RO
RO
RO, R/W
—
RO, R/W
RO, R/W
—
RO, R/W
RO, R/W
RO, R/W
—
RWO, RO,
R/W
R/WC
RO, R/W
RO, R/W
RO, R/W
—
R/W
—
RO
—
Intel^® 82845GE/82845PE Datasheet
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