pc87317vul National Semiconductor Corporation, pc87317vul Datasheet - Page 84

• Manufacturer Part Number: pc87317vul
• Description: Pc87317vul/pc97317vul Superi/o Plug And Play Compatible With Acpi Compliant Controller/extender
• Manufacturer: National Semiconductor Corporation

www.national.com
4.8 RTC AND APC REGISTER BITMAPS
4.8.1
7
7
7
7
0
0
VRT
SET
6
IRQF
6
6
6
0
0
0
0
UIP
0
RTC Register Bitmaps
PIE
PF
5
5
5
5
DV2
1
0
0
0
0
AF
DV1
4
AIE
4
0
4
4
0
0
0
0
UF
DV0
3
3
0
0
UIE
3
3
0
0
0
0
0
Real-Time Clock (RTC) and Advanced Power Control (APC) (Logical Device 2)
Unused
RS3
2
2
2
2
0
0
0
0
0
Reserved
DM
RS2
1
1
1
0
1
0
0
0
0
Reserved
24 or 12 Hour Mode
RS1
0
0
0
0
0
0
0
0
0
Power-Up
Reset
Required
Power-Up
Reset
Required
Power-Up
Reset
Required
Power-Up
Reset
Required
DSE
RS0
RTC Control
RTC Control
RTC Control
RTC Control
Register A
Register B
Register C
Register D
Index 0Ah
Index 0Bh
Index 0Ch
Index 0Dh
(CRA)
(CRB)
(CRC)
(CRD)
84
4.8.2
7
7
7
7
1
Software On Command
RS
6
Power Failure
6
6
6
1
“Don’t Care” control bits
APC Register Bitmaps
Fail-safe Timer Reset Command
5
SODE
5
0
Reserved
5
5
0
SOED
4
SOC
4
R2E
0
4
4
0
3
R1E
3
0
FTD
MOAP
3
3
0
Level POR Clear Command
2
RE
0
2
2
RI2 Detect
2
0
POR Edge or Level Select
Wake up Day-of-Week Bits
1
RPTDM
RI1 Detect
0
1
1
1
0
0
Switch Off Delay Option
RSS
1
0
RID
0
0
0
Power-Up
Reset
Required
Power-Up
Reset
Required
Failsafe Timer Trigger Cmd.
Power-Up
Reset
Required
TME
TMD
Power-Up
Required
Reset
Wake up Day of Week
APC Control
APC Control
APC Status
Register 1
Register 2
Index 41h
index 40h
Index 42h
Index 43h
(APCR2)
(APCR1)
Register
Register
(WDWR)
(APSR)