MMC2107 - Freescale Semiconductor

Freescale Semiconductor, Inc.
Watchdog Timer Module
Memory Map and Registers
13.6.2.1 Watchdog Control Register
The 16-bit read/write watchdog control register (WCR) configures
watchdog timer operation.
Address: 0x00c7_0000 and 0x00c7_0001
Bit 15 14 13 12 11 10 9 Bit 8
Read: 0 0 0 0 0 0 0 0
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Freescale Semiconductor, I
Write:
Reset: 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 Bit 0
Read: 0 0 0 0
Write:
WAIT DOZE DBG EN
Reset: 0 0 0 0 1 1 1 1
= Writes have no effect and the access terminates without a transfer error exception.
Figure 13-2. Watchdog Control Register (WCR)
WAIT — Wait Mode Bit
The read-always, write-once WAIT bit controls the function of the
watchdog timer in wait mode. Once written, the WAIT bit is not
affected by further writes except in debug mode. Reset sets WAIT.
1 = Watchdog timer stopped in wait mode
0 = Watchdog timer not affected in wait mode
DOZE — Doze Mode Bit
The read-always, write-once DOZE bit controls the function of the
watchdog timer in doze mode. Once written, the DOZE bit is not
affected by further writes except in debug mode. Reset sets DOZE.
1 = Watchdog timer stopped in doze mode
0 = Watchdog timer not affected in doze mode
MMC2107 – Rev. 2.0
Technical Data
MOTOROLA Watchdog Timer Module 275
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