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Chapter 9 Watchdog Timer
Interrupt Service Routine Setup
Setup Procedure
(1) Set the watchdog interrupt service
routine.
NMICR (x'03FE1')
TBNZ (NMICR) WDIR, WDPRO
The operation, just before the WDOG interrupt may be executed wrongly. Therefore, if the
WDOG interrupt is generated, initialize the system.
IX - 8
Operation
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Description
(1) If the watchdog timer overflows, the non
maskable interrupt is generated.
Confirm that the WDIR flag of the non
maskable interrupt control register (NMICR) is
"1" on the interrupt service routine, and
manage the suitable execution.
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