Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
17-6
•To change the reload value, write the new values to the WDTRLDH and WDTRLDL
registers, as described in steps 1 and 2 above.
•To disable or enable bus monitor mode, write to the bus monitor bit (BUSMON):
— 0 = disabled
— 1 = enabled
17.3 DISABLING THE WDT
If your system has no need for the WDT, when the unit is in bus monitor or general-purpose t imer
mode, you can disable the unit by setting the CLKDIS bit in the WDTSTATUS register (Figure
17-3), which stops the clock to the WDT. In this configuration, the WDT consumes minimal pow-
er, but you can re-enable the unit at any time.
If the WDT is in watchdog mode, you cannot write to the WDTSTATUS register to stop the clock
and therefore cannot disable the unit.