参数资料
型号: YMF754
厂商: Yamaha Corporation
英文描述: DS-1E
中文描述: 副秘书长至1E
文件页数: 20/60页
文件大小: 305K
代理商: YMF754
YMF754
June 28, 1999
-27-
50h: Capability ID
Read Only
Default: 01h
Access Bus Width: 8, 16, 32-bit
b7
b6
b5
b4
b3
b2
b1
b0
Capability ID
b[7:0] ..........Capability ID: Capability Identifier
This register indicates that the new capability register is for Power Management control.
This register is
hardwired to 01h.
51h: Next Item Pointer
Read Only
Default: 00h
Access Bus Width: 8, 16, 32-bit
b7
b6
b5
b4
b3
b2
b1
b0
Next Item Pointer
b[7:0] ..........Next Item Pointer
DS-1E does not provide other new capability besides Power Management.
This register is hardwired to
00h.
52-53h: Power Management Capabilities
Read Only
Default: 0401h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
-
D2S
-
Version
b[2:0] ..........Version
These bits contain the revision number of the Power Management Interface Specification.
They are
hardwired to 001b.
b10..............D2S: D2 Support
This bit indicates that DS-1E support “D2” of the power state.
It is hardwired to “1”.
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