WM8352 datasheet(197/336 Pages) WOLFSON

Part #	WM8352

Description	Wolfson AudioPlus™ Stereo CODEC with Power Management

PDF	336 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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197 / 336 page

Production Data

WM8352

PD, February 2011, Rev 4.4

197

ADDRESS

BIT

LABEL

DESCRIPTION

R26 (1Ah)

Interrupt Status

SYS_WDOG_TO_EINT

Watchdog timeout has occurred.

(Rising Edge triggered)

Note: This bit is cleared once read.

R34 (22h)

Interrupt Status

2 Mask

IM_SYS_WDOG_TO_EINT

Mask bit for Watchdog timer interrupt

When set to 1, IM_SYS_WDOG_TO_EINT

masks SYS_WDOG_TO_EINT in R26 and

does not trigger an SYS_INT interrupt when

SYS_WDOG_TO_EINT is set).

Table 140 Watchdog Timer Interrupts

Note that, if GPIO9 is configured as VCC_FAULT output (GP9_FN = 0001, GP9_DIR = 0), then the

Watchdog Timer will be configured to expect a HEARTBEAT reset trigger. In this configuration, the

Watchdog Reset will never occur and the system may lock up if the Watchdog Mode is enabled.

The Watchdog Timer function cannot be supported if GPIO9 is configured as VCC_FAULT output.

Either the GPIO9 must be reconfigured as some other function, or the Watchdog Timer must remain

disabled.

WM8352 Datasheet(PDF) 197 Page - Wolfson Microelectronics plc