CMD32EN=0, FLG=0, WAIT=0, STOP=0, INT=0, EN=0, TST=00, CLK=00, DBG=0, UPDATE=0, PRES=0, WIN=0
Watchdog Control and Status Register
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. |