Panasonic MN101C77C, F77G Tbnz Nmicr WDIR, Wdpro, Maskable interrupt control register Nmicr is

Chapter 9 Watchdog Timer

„Interrupt Service Routine Setup

Setup Procedure	Description
(1) Set the watchdog interrupt service	(1) If the watchdog timer overflows, the non
routine.	maskable interrupt is generated.
NMICR (x'03FE1')	Confirm that the WDIR flag of the non
TBNZ (NMICR) WDIR, WDPRO	maskable interrupt control register (NMICR) is
. . . . . . .	"1" on the interrupt service routine, and
. . . . . . .	manage the suitable execution.
. . . . . . .

The operation, just before the WDOG interrupt may be executed wrongly. Therefore, if the WDOG interrupt is generated, initialize the system.

IX - 8 Operation