參數資料
型號: 82815EM
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數據表參考
文件頁數: 109/163頁
文件大小: 1049K
代理商: 82815EM
Intel
82815EM GMCH
R
Datasheet
109
3.8.25.
PM_CS - Power Management Control/Status Register (Device 2)
Address Offset:
E0h
E1h
Default Value:
0000h
Access:
Read/Write
15
14
13
12
9
8
PME Sta
(HW=0)
Data Scale (Reserved)
Data_Select (Reserved)
PME En
7
2
1
0
Reserved
PowerState
Bits
Description
15
PME_Status
D3 (cold).
RO.
This bit is 0 to indicate that GMCH2-M does not support PME# generation from
14:13
Data Scale (Reserved)
when read; write operations have no effect.
RO.
GMCH2-M does not support data register. This bit always returns 0
12:9
Data_Select (Reserved)
when read; write operations have no effect.
RO
. GMCH2-M does not support data register. This bit always returns 0
8
PME_En
Read/Write.
This bit is 0 to indicate that PME# assertion from D3 (cold) is disabled.
7:2
Reserved.
Always returns 0s when read; write operations have no effect.
1:0
PowerState
to set GMCH2-M into a new power state. If software attempts to write an unsupported state to this
field, write operation must complete normally on the bus, but the data is discarded and no state
change occurs.
Read/Write.
This field indicates the current power state of GMCH2-M and can be used
00 = D0
01 = D1 (Not supported in GMCH2-M)
10 = D2 (Not supported in GMCH2-M)
11 = D3
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