PC87364 Datasheet, PDF (85/180 Pages) National Semiconductor (TI) – 128-Pin LPC SuperI/O with Extended Wake-Up and Protection Support

3.0 System Wake-Up Control (SWC) (Continued)
3.4.3 Wake-Up Events Status Register (WK_STS1)
This register is set to 00h on power-up of V_PP, V_SB or software reset. It indicates which of the corresponding eight wake-up
events have occurred. Writing 1 to a bit clears it to 0. Writing 0 has no effect.
Location: Offset 01h
Type:
R/W1C
Bit
Name
Reset
7
GPIE7
Event
Status
0
6
GPIE6
Event
Status
0
5
GPIE5
Event
Status
0
4
GPIE4/
RING
Event
Status
0
3
GPIE3
Event
Status
0
2
GPIE2
Event
Status
0
1
GPIE1
Event
Status
0
0
GPIE0
Event
Status
0
Bit
Description
7 GPIE7 Event Status
0: Event not detected (default)
1: Event detected
6 GPIE6 Event Status
0: Event not detected (default)
1: Event detected
5 GPIE5 Event Status
0: Event not detected (default)
1: Event detected
4 GPIE4/RING Event Status. This sticky bit shows the status of either GPIE4 or RING event detection, according
to the function currently selected on pin 27.
0: Event not detected (default)
1: Event detected
3 GPIE3 Event Status
0: Event not detected (default)
1: Event detected
2 GPIE2 Event Status
0: Event not detected (default)
1: Event detected
1 GPIE1 Event Status
0: Event not detected (default)
1: Event detected
0 GPIE0 Event Status
0: Event not detected (default)
1: Event detected
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