
9.0 System Wake-Up Control (SWC)
(Continued)
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P
9.3.2
This register selects the wake-up event to be configured (i.e., which register is accessed via the Wake-Up State Enable reg-
ister). Since access to the Wake-Up State Enable register requires two transactions (first to WK_EVT_SEL and then to
WK_ST_EN) and since the LPC bus and ACCESS.bus access the module concurrently (
PC87413 and PC87417
), the
WK_EVT_SEL register is duplicated (one accessed by the host and one by the ACCESS.bus).This register is reset by hard-
ware to 00h.
The wake-up events selected through this register are active when either the bits of the GPE1_STS_0 to GPE1_STS_3 reg-
isters or the PM1b_STS_HIGH register are set. Table 48 shows the mapping of the WKUPSEL field value to each wake-up
event and the related status bit.
Power Well:V
PP
Location:
All Banks
, Offset 00h
Type:
R/W
Wake-Up Event Select Register (WK_EVT_SEL)
Table 46. Bank 2 - Sleep States and ACPI Configuration Register Map
Offset
Mnemonic
Register Name
Type
Power Well Section
10h
S0_SLP_TYP
S0 Sleep Type Encoding
R/W or RO
V
PP
9.3.30
11h
S1_SLP_TYP
S1 Sleep Type Encoding
R/W or RO
V
PP
9.3.30
12h
S2_SLP_TYP
S2 Sleep Type Encoding
R/W or RO
V
PP
9.3.30
13h
S3_SLP_TYP
S3 Sleep Type Encoding
R/W or RO
V
PP
9.3.30
14h
S4_SLP_TYP
S4 Sleep Type Encoding
R/W or RO
V
PP
9.3.30
15h
S5_SLP_TYP
S5 Sleep Type Encoding
R/W or RO
V
PP
9.3.30
16h
SLP_ST_CFG
Sleep State Configuration
Varies per bit
V
PP
9.3.31
17h
ACPI_CFG
ACPI Configuration
R/W
V
PP
9.3.32
18h-1Fh Reserved
Table 47. Bank 3 - Watchdog Register Map
Offset
Mnemonic
Register Name
Type
Power Well Section
10h
WDCTL
Watchdog Control
Varies per bit
V
SB
9.3.33
11h
WDTO
Watchdog Time-Out
R/W
V
SB
9.3.34
12h
WDCFG
Watchdog Configuration
R/W
V
SB
9.3.17
13h-1Fh Reserved
Bit
7
6
5
4
3
2
1
0
Name
Reserved
WKUPSEL
Reset
0
0
0
0
0
0
0
0
Bit
Description
7-5
Reserved.
4-0
WKUPSEL (Wake-Up Event Select).
These bits select a wake-up event to be configured through the
WK_ST_EN register (see Table 48).
00000: GPIOE10 Event Status (default)
00001 to 11111: Wake-up events (see Table 48)