WM8321 datasheet(243/253 Pages) WOLFSON

243 / 253 page

Production Data

WM8321

PD, February 2012, Rev 4.0

243

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

3:1

SYSOK_THR

[2:0]

101

SYSOK threshold (rising PVDD)

This is the rising PVDD voltage at which SYSOK will be

asserted

000 = 2.8V

001 = 2.9V

…

111 = 3.5V

Note that the SYSOK hysteresis margin is added to

these threshold levels.

GPIO6 OTP Control

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R30759

(7827h) ICE

CHECK

DATA

15:0

ICE_VALID_D

ATA [15:0]

0000_0000

_0000_000

This field is checked in development mode when an

‘ON’ transition is requested. A value of A596h is

required to confirm valid data.

ICE CHECK DATA

WM8321 データシート(PDF) 243 Page - Wolfson Microelectronics plc

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