Datasheet

Intel
®
82845G/82845GL/82845GV GMCH Datasheet 183
Intel
®
82845GL/82845GV GMCH
9.4 Intel
®
82845G and Intel
®
82845GL/82845GV Register
Differences
Chapter 3 describes the registers for the 82845G GMCH. This section describes the changes to
Chapter 3 for the 82845GL/82845GV GMCH. The differences are in the Device 0 and Device 1
register sets. The Device 2 registers are the same for the 82845G and 82845GL/82845GV.
9.4.1 DRAM Controller/Host-Hub Interface Device Registers
(Device 0)
9.4.1.1 Device 0 Registers Not in 82845GL/82845GV
The following registers are not in the 82845GL82845GV and the address locations are Intel
Reserved.
APBASE
— Aperture Base Configuration Register (Device 0)
Address Offset: 10–13h
Size: 32 bits
AGPM
— AGP Miscellaneous Configuration Register (Device 0)
Address Offset 51h
Size: 8 bits
ACAPID
— AGP Capability Identifier Register (Device 0)
Address Offset A0–A3h
Size: 32 bits
AGPSTAT
— AGP Status Register (Device 0)
Address Offset A4–A7h
Size: 32 bits
AGPCMD
— AGP Command Register (Device 0)
Address Offset A8–ABh
Size: 32 bits
AGPCTRL
— AGP Control Register (Device 0)
Address Offset B0–B3h
Size: 32 bits
APSIZE
— Aperture Size Register (Device 0)
Address Offset B4h
Size: 8 bits