PC87413 datasheet(178/257 Pages) NSC

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9.0 System Wake-Up Control (SWC) (Continued)

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178

Revision1.2

9.3.2

Wake-Up Event Select Register (WK_EVT_SEL)

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:VPP

Location: All Banks, Offset 00h

Type:

R/W

Table 46. Bank 2 - Sleep States and ACPI Conﬁguration Register Map

Offset

Mnemonic

Type

Power Well Section

10h

S0_SLP_TYP

S0 Sleep Type Encoding

R/W or RO

VPP

9.3.30

11h

S1_SLP_TYP

S1 Sleep Type Encoding

R/W or RO

VPP

9.3.30

12h

S2_SLP_TYP

S2 Sleep Type Encoding

R/W or RO

VPP

9.3.30

13h

S3_SLP_TYP

S3 Sleep Type Encoding

R/W or RO

VPP

9.3.30

14h

S4_SLP_TYP

S4 Sleep Type Encoding

R/W or RO

VPP

9.3.30

15h

S5_SLP_TYP

S5 Sleep Type Encoding

R/W or RO

VPP

9.3.30

16h

SLP_ST_CFG

Sleep State Conﬁguration

Varies per bit

VPP

9.3.31

17h

ACPI_CFG

ACPI Conﬁguration

R/W

VPP

9.3.32

18h-1Fh Reserved

Table 47. Bank 3 - Watchdog Register Map

Offset

Mnemonic

Type

Power Well Section

10h

WDCTL

Watchdog Control

Varies per bit

VSB

9.3.33

11h

WDTO

Watchdog Time-Out

R/W

VSB

9.3.34

12h

WDCFG

Watchdog Conﬁguration

R/W

VSB

9.3.17

13h-1Fh Reserved

Bit

76543210

Name

Reserved

WKUPSEL

Reset

00000000

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)

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