Power management control/status, 0x44, Register: 0x44 – Avago Technologies LSI53C876E User Manual
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Registers
APS
Auxiliary Power Source
4
Because the LSI53C876E does not provide a PME
signal, this bit always returns a 0, indicating that no
auxiliary power source is required to support the PME
signal in the D3cold power management state.
PMEC
PME Clock
3
This field is always set to 00000b because the
LSI53C876E does not provide a PME signal.
VER
Version
[2:0]
This field is set to 001b to indicate that the LSI53C876E
complies with Revision 1.0 of the PCI Power
Management Interface Specification.
Register: 0x44
Power Management Control/Status
Read/Write
This register applies to the LSI53C876E only and indicates the power
management control and status descriptions.
PST
PME Status
15
The LSI53C876E always returns a zero for this bit,
indicating that PME signal generation is not supported
from D3cold.
DSCL
Data Scale
[14:13]
The LSI53C876E does not support the
register.
Therefore, this field is always set to 00b.
DSLT
Data Select
[12:9]
The LSI53C876E does not support the
register.
Therefore, this field is always set to 0000b.
PEN
PME Enable
8
The LSI53C876E always returns a zero for this bit to
indicate that PME assertion is disabled.
15
14 13 12
9
8
7
2
1
0
PST DSCL
DSLT
PEN
R
PWS
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0