WM8321 datasheet(235/253 Pages) WOLFSON

235 / 253 page

Production Data

WM8321

PD, February 2012, Rev 4.0

235

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

DC4_SLV

DC-DC4 Slave Mode select

0 = Disabled

1 = Enabled

DC4_SLV = 1, then DC-DC4 is a slave to DC-DC3, and

both converters are controlled by the DC-DC3 registers.

This field can only be written to by loading configuration

settings from OTP/ICE. In all other cases, this field is

Read Only.

LDO11/EPE Control

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R30746

(781Ah)

GPIO1 OTP

Control

GP1_DIR

GPIO1 pin direction

0 = Output

1 = Input

14:13

GP1_PULL

[1:0]

GPIO1 Pull-Up / Pull-Down configuration

00 = No pull resistor

01 = Pull-down enabled

10 = Pull-up enabled

11 = Reserved

GP1_INT_MOD

GPIO1 Interrupt Mode

0 = GPIO interrupt is rising edge triggered (if

GP1_POL=1) or falling edge triggered (if GP1_POL=0)

1 = GPIO interrupt is triggered on rising and falling

edges

GP1_PWR_DO

GPIO1 Power Domain select

0 = DBVDD

1 = PMICVDD (LDO12)

GP1_POL

GPIO1 Polarity select

0 = Inverted (active low)

1 = Non-Inverted (active high)

GP1_OD

GPIO1 Output pin configuration

0 = CMOS

1 = Open Drain

GP1_ENA

GPIO1 Enable control

0 = GPIO pin is tri-stated

1 = Normal operation

7:4

GP1_FN [3:0]

0000

GPIO1 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

13 = HW Control2 input

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