WM8321 datasheet(238/253 Pages) WOLFSON

238 / 253 page

WM8321

Production Data

PD, February 2012, Rev 4.0

238

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

100 = Enable in Timeslot 4

101 = Enable in Timeslot 5

110 = Do not enable

111 = Do not enable

WDOG_ENA

Watchdog Timer Enable

0 = Disabled

1 = Enabled (enables the watchdog; does not reset it)

Protected by security key.

GPIO2 OTP Control

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R30748

(781Ch)

GPIO3 OTP

Control

GP3_DIR

GPIO3 pin direction

0 = Output

1 = Input

14:13

GP3_PULL

[1:0]

GPIO3 Pull-Up / Pull-Down configuration

00 = No pull resistor

01 = Pull-down enabled

10 = Pull-up enabled

11 = Reserved

GP3_INT_MOD

GPIO3 Interrupt Mode

0 = GPIO interrupt is rising edge triggered (if

GP3_POL=1) or falling edge triggered (if GP3_POL=0)

1 = GPIO interrupt is triggered on rising and falling

edges

GP3_PWR_DO

GPIO3 Power Domain select

0 = DBVDD

1 = PMICVDD (LDO12)

GP3_POL

GPIO3 Polarity select

0 = Inverted (active low)

1 = Non-Inverted (active high)

GP3_OD

GPIO3 Output pin configuration

0 = CMOS

1 = Open Drain

GP3_ENA

GPIO3 Enable control

0 = GPIO pin is tri-stated

1 = Normal operation

7:4

GP3_FN [3:0]

0000

GPIO3 Pin Function

Input functions:

0 = GPIO input (long de-bounce)

1 = GPIO input

2 = Power On/Off request

3 = Sleep/Wake request

4 = Sleep/Wake request (long de-bounce)

5 = Sleep request

6 = Power On request

7 = Watchdog Reset input

8 = DVS1 input

9 = DVS2 input

10 = HW Enable1 input

11 = HW Enable2 input

12 = HW Control1 input

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