MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 300

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Watchdog Timer Module
Advance Information
300
NOTE:
DBG — Debug Mode Bit
Changing the DBG bit from 1 to 0 during debug mode starts the
watchdog timer. Changing the DBG bit from 0 to 1 during debug mode
stops the watchdog timer.
EN — Watchdog Enable Bit
The read-always, write-once DBG bit controls the function of the
watchdog timer in debug mode. Once written, the DBG bit is not
affected by further writes except in debug mode.
During debug mode, watchdog timer registers can be written and read
normally. When debug mode is exited, timer operation continues from
the state it was in before entering debug mode, but any updates made
in debug mode remain. If a write-once register is written for the first
time in debug mode, the register is still writable when debug mode is
exited.
The read-always, write-once EN bit enables the watchdog timer.
Once written, the EN bit is not affected by further writes except in
debug mode. When the watchdog timer is disabled, the watchdog
counter and prescaler counter are held in a stopped state.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Watchdog timer stopped in debug mode
0 = Watchdog timer not affected in debug mode
1 = Watchdog timer enabled
0 = Watchdog timer disabled
Go to: www.freescale.com
Watchdog Timer Module
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA