WM8352 datasheet(222/336 Pages) WOLFSON

222 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

222

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

5:4

WDOG_MODE[1:0]

00 = Disabled

01 = SYS_WDOG_TO interrupt on time-out

10 = WKUP_WDOG_RST interrupt and System

reset on time-out

11 = SYS_WDOG_TO interrupt on first time-out,

WKUP_WDOG_RST interrupt and System reset

on second time-out

Protected by security key. Reset by state

machine. Default held in metal mask.

2:0

WDOG_TO[2:0]

100

Watchdog timeout (seconds)

The timer is reset to this value when a

HEARTBEAT signal edge is detected or the host

writes to the watchdog control register.

000 = 0.125s

… (time doubles with each step)

101 = 4s

11x = Reserved

Protected by security key.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R5 (05h)

System

Hibernate

HIBERNATE

Determines what state the chip should

operate in.

0 = Active state

1 = Hibernate state

The register bit defaults to 0, when a reset

happens

Reset by state machine. Default held in metal

mask.

WDOG_HIB_MODE

Watchdog behaviour in HIBERNATE state

0 = WDOG disabled in Hibernate

1 = WDOG controlled by WDOG_MODE in

Hibernate

HIB_STARTUP_SEQ

Direction to take when going from Hibernate

state to the Active state.

0 = Hibernate to Active without going through

startup state

1 = Hibernate to Active goes though startup

sequence

REG_RESET_HIB_MODE

Action of the internal register reset signal

when going from Hibernate to Active.

0 = Do a register reset when leaving the

hibernate state.

1 = Do not do a register reset when leaving

the hibernate state

RST_HIB_MODE

/RST pin state in hibernate mode:

0 = Asserted (low)

1 = Not asserted (high)

IRQ_HIB_MODE

IRQ pin state in hibernate mode

0 = Normal operation

1 = Forced to indicate there is no IRQ

MEMRST_HIB_MODE

/MEMRST (Alternative GPIO function) pin

state in hibernate mode

0 = Asserted (low)

1 = Not asserted (high)

WM8352 Datasheet(PDF) 222 Page - Wolfson Microelectronics plc

WM8352 Datasheet(HTML) 222 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL