參數(shù)資料
型號: 82815EM
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù): 101/163頁
文件大小: 1049K
代理商: 82815EM
Intel
82815EM GMCH
R
Datasheet
101
3.8.5.
RID2—Revision Identification Register (Device 2)
Address Offset:
08h
Default Value:
10h for A0-step silicon
11h for A1-step silicon
Access:
Read Only
This register contains the revision number of GMCH2-M. These bits are read only and writes to this
register have no effect.
Bits
Description
7:0
Revision Identification Number.
This is an 8-bit value that indicates the revision identification
number for GMCH2-M. The four MSB’s are for process differentiation and the four LSB’s indicate
stepping. Default = 10h
3.8.6.
PI—Programming Interface Register (Device 2)
Address Offset:
09h
Default Value:
00h
Access:
Read Only
This register contains the device-programming interface for GMCH2-M.
Bits
Description
7:0
Programming Interface (PI).
00h=Hardwired as a Display controller.
3.8.7.
SUBC2—Sub-Class Code Register (Device 2)
Address Offset:
0Ah
Default Value:
00h
Access:
Read Only
Size:
8 bits
This register contains the Sub-Class Code for the GMCH2-M Device 2.
Bit
Description
7:0
Sub-Class Code (SUBC)
. This is an 8-bit value that indicates the category of Display controller into
which GMCH2-M falls. The code is 00h indicating a VGA compatible device. Default = 00h
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