Freescale Semiconductor /MKL28T7_CORE1 /WDOG0 /CS

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Interpret as CS

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (0)STOP 0 (0)WAIT 0 (0)DBG 0 (00)TST0 (0)UPDATE 0 (0)INT 0 (0)EN 0 (00)CLK0 (0)PRES 0 (0)CMD32EN 0 (0)FLG 0 (0)WIN

CMD32EN=0, FLG=0, WAIT=0, STOP=0, INT=0, EN=0, TST=00, CLK=00, DBG=0, UPDATE=0, PRES=0, WIN=0

Description

Watchdog Control and Status Register

Fields

STOP

Stop Enable

0 (0): Watchdog disabled in chip stop mode.

1 (1): Watchdog enabled in chip stop mode.

WAIT

Wait Enable

0 (0): Watchdog disabled in chip wait mode.

1 (1): Watchdog enabled in chip wait mode.

DBG

Debug Enable

0 (0): Watchdog disabled in chip debug mode.

1 (1): Watchdog enabled in chip debug mode.

TST

Watchdog Test

0 (00): Watchdog test mode disabled.

1 (01): Watchdog user mode enabled. (Watchdog test mode disabled.) After testing the watchdog, software should use this setting to indicate that the watchdog is functioning normally in user mode.

2 (10): Watchdog test mode enabled, only the low byte is used. CNT[CNTLOW] is compared with TOVAL[TOVALLOW].

3 (11): Watchdog test mode enabled, only the high byte is used. CNT[CNTHIGH] is compared with TOVAL[TOVALHIGH].

UPDATE

Allow updates

0 (0): Updates not allowed. After the initial configuration, the watchdog cannot be later modified without forcing a reset.

1 (1): Updates allowed. Software can modify the watchdog configuration registers within 128 bus clocks after performing the unlock write sequence.

INT

Watchdog Interrupt

0 (0): Watchdog interrupts are disabled. Watchdog resets are not delayed.

1 (1): Watchdog interrupts are enabled. Watchdog resets are delayed by 128 bus clocks from the interrupt vector fetch.

EN

Watchdog Enable

0 (0): Watchdog disabled.

1 (1): Watchdog enabled.

CLK

Watchdog Clock

0 (00): Bus clock.

1 (01): Internal low-power oscillator (LPOCLK).

2 (10): 8 MHz internal reference clock.

3 (11): External clock source.

PRES

Watchdog Prescalar

0 (0): 256 prescalar disabled.

1 (1): 256 prescalar enabled.

CMD32EN

Enables or disables WDOG support for 32-bit (or 16-bit or 8-bit) refresh/unlock command write words

0 (0): Disables support for 32-bit (or 16-bit or 8-bit) refresh/unlock command write words

1 (1): Enables support for 32-bit (or 16-bit or 8-bit) refresh/unlock command write words

FLG

Watchdog Interrupt Flag

0 (0): No interrupt occurred.

1 (1): An interrupt occurred.

WIN

Watchdog Window

0 (0): Window mode disabled.

1 (1): Window mode enabled.

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