WM8321 datasheet(178/253 Pages) WOLFSON

178 / 253 page

WM8321

Production Data

PD, February 2012, Rev 4.0

178

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

13 = HW Control2 input

14 = HW Control1 input (long de-bounce)

15 = HW Control2 input (long de-bounce)

Output functions:

0 = GPIO output

1 = 32.768kHz oscillator output

2 = ON state

3 = SLEEP state

4 = Power State Change

5 = Reserved

6 = Reserved

7 = Reserved

8 = DC-DC1 DVS Done

9 = DC-DC2 DVS Done

10 = External Power Enable1

11 = External Power Enable2

12 = System Supply Good (SYSOK)

13 = Converter Power Good (PWR_GOOD)

14 = External Power Clock (2MHz)

15 = Auxiliary Reset

GPIO8 Control

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16448

(4040h)

GPIO9

Control

GP9_DIR

GPIO9 pin direction

0 = Output

1 = Input

14:13

GP9_PULL

[1:0]

GPIO9 Pull-Up / Pull-Down configuration

00 = No pull resistor

01 = Pull-down enabled

10 = Pull-up enabled

11 = Reserved

GP9_INT_MOD

GPIO9 Interrupt Mode

0 = GPIO interrupt is rising edge triggered (if

GP9_POL=1) or falling edge triggered (if GP9_POL=0)

1 = GPIO interrupt is triggered on rising and falling

edges

GP9_PWR_DO

GPIO9 Power Domain select

0 = DBVDD

1 = PMICVDD (LDO12)

GP9_POL

GPIO9 Polarity select

0 = Inverted (active low)

1 = Non-Inverted (active high)

GP9_OD

GPIO9 Output pin configuration

0 = CMOS

1 = Open Drain

GP9_ENA

GPIO9 Enable control

0 = GPIO pin is tri-stated

1 = Normal operation

WM8321 Datasheet(PDF) 178 Page - Wolfson Microelectronics plc

WM8321 Datasheet(HTML) 178 Page - Wolfson Microelectronics plc

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