WM8352 datasheet(219/336 Pages) WOLFSON

219 / 336 page

Production Data

WM8352

PD, February 2011, Rev 4.4

219

27 REGISTER BITS BY ADDRESS

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R0 (00h)

Reset/ID

15:0

SW_RESET/CHIP_ID[15:0] 0110_0001_0100_0011 Reading this register returns 6143h.

Never reset.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R1 (01h) ID

15:12

CHIP_REV[3:0]

The functional silicon revision - this tracks changes in

functionality which are separate from ROM mask

settings

11:10

CONF_STS[1:0]

The state of the configuration pins. This selects what

7:0

CUST_ID[7:0]

The Chip Revision Number

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R2 (02h)

Revision

7:0

MASK_REV[7:0]

The ROM Mask ID

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R3 (03h)

System

Control 1

CHIP_ON

Indicates whether the system is on or off. Writing

0 to this bit powers down the whole chip. Registers

which are affected by state machine reset will get

reset.

Once the system is turned OFF it can be restarted

by any of the valid ON event.

Reset by state machine. Default held in metal

mask.

SYS_RST

Allows the processors to reboot itself

0 = Do nothing

1 = Perform a processor reset by asserting the

/RST and /MEMRST (GPIO) pins for the

programmed duration

Protected by security key. Reset by state machine.

Default held in metal mask.

POWERCYCLE

Action to take on a fault (if response is set to

shutdown system):

0 = Shut down

1 = Shutdown everything then go through startup

sequence. i.e. Reboot the system.

VCC_FAULT_OV

Include over voltage in the /VCC_FAULT pin

(Alternative GPIO function)

0 = Do not include over voltage in the

/VCC_FAULT signal

1 = Include the over voltage in the /VCC_FAULT

signal

Reset by state machine. Default held in metal

mask.

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