82845MP Datasheet, PDF (57/157 Pages) Intel Corporation – Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M)

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Intel^® 82845MP/82845MZ Chipset-Mobile (MCH-M)
3.7.11.
SVID – Subsystem Vendor ID – Device #0
Offset:
Default:
Access:
Size:
2C-2Dh
0000h
Read/Write Once
16 bits
This value is used to identify the vendor of the subsystem.
Bit
Description
15:0
Subsystem Vendor ID (R/WO). The default value is 00h. This field should be programmed during
boot-up. After this field is written once, it becomes read only.
3.7.12.
SID – Subsystem ID – Device #0
Offset:
Default:
Access:
Size:
2E-2Fh
0000h
Read/Write Once
16 bits
This value is used to identify a particular subsystem.
Bit
Description
15:0
Subsystem ID (R/WO). The default value is 00h. This field should be programmed during boot-up.
After this field is written once, it becomes read only.
3.7.13.
CAPPTR – Capabilities Pointer – Device #0
Offset:
Default:
Access:
Size:
34h
E4h
Read Only
8 bits
The CAPPTR provides the offset that is the pointer to the location where the AGP standard registers are
located.
Bit
Description
7:0
Pointer to the start of AGP standard register block. This pointer tells software where it can find
the beginning of the AGP register block. The value in this field is E4h.
250687-002
Datasheet
57