cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 479

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
PMC Register Descriptions
5.18.1 PMC Specific MSRs
5.18.1.1
MSR Address
Type
Reset Value
5.18.1.2
MSR Address
Type
Reset Value
5.18.2 ACPI Registers
5.18.2.1
ACPI I/O Offset
Type
Reset Value
PM1_STS is the Status register for Timer Carry, Button, and RTC Alarm wakeup events. All bits in this register are cleared
by the Standby state except bits 15, 10, and 8. They maintain their state through Standby.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
WAK_
FLAG
15
31:0
Bit
31:0
Bit
14
PMC Logic Timer (PMC_LTMR)
PMC Reserved (PMC_RSVD)
PM Status 1 (PM1_STS)
Name
MSR_PML_TMR
Name
PMC_RSVD
RSVD
13
51400050h
R/W
00000000h
51400051h
R/W
00000000h
00h
R/W
0000h
12
IGNORE RTC_
11
Description
Legacy Power Management Timer. 32-Bit write / read of timer counter.
Writes initialize the counter value; reads return current timer counter value.
Description
Reserved. This is a reserved register and should not be accessed by user software.
By convention write 0, but other values are “don’t care”. Reads always return 0.
FLAG
(Continued)
10
MSR_PML_RSVD Bit Descriptions
PMC_LTMR Bit Descriptions
SLPBTN
PMC_RSVD Register Map
PMC_LTMR Register Map
_FLAG
PM1_STS Register Map
9
MSR_PML_TMR
PWRBTN
_FLAG
PMC_RSVD
8
479
7
RSVD
6
GBL_
FLAG
5
9
9
FLAG
BM_
4
8
8
7
7
3
6
6
5
5
RSVD
2
4
4
3
3
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1
2
2
TMR_
FLAG
1
1
0
0
0