MMC2107 - Freescale Semiconductor

Watchdog Timer Module
Freescale Semiconductor, Inc.
13.3 Modes of Operation
This subsection describes the operation of the watchdog timer in
low-power modes and debug mode of operation.
13.3.1 Wait Mode
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13.3.2 Doze Mode
13.3.3 Stop Mode
13.3.4 Debug Mode
In wait mode with the WAIT bit set in the watchdog control register
(WCR), watchdog timer operation stops. In wait mode with the WAIT bit
clear, the watchdog timer continues to operate normally.
In doze mode with the DOZE bit set in WCR, watchdog timer module
operation stops. In doze mode with the DOZE bit clear, the watchdog
timer continues to operate normally.
The watchdog operation stops in stop mode. When stop mode is exited,
the watchdog operation continues operation from the state it was in prior
to entering stop mode.
In debug mode with the DBG bit set in WCR, watchdog timer module
operation stops. In debug mode with the DBG bit clear, the watchdog
timer continues to operate normally. When debug mode is exited,
watchdog timer operation continues from the state it was in before
entering debug mode, but any updates made in debug mode remain.
Technical Data MMC2107 – Rev. 2.0
272 Watchdog Timer Module MOTOROLA
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