NEC 78K0S/KA1+ User Manual page 150

Figure 9-4. Status Transition Diagram When "Low-Speed Internal Oscillator Cannot Be Stopped"
Is Selected by Option Byte
WDTE = "ACH"
Clear WDT counter.
HALT instruction
150
CHAPTER 9 WATCHDOG TIMER
WDT clock: f
Overflow time: 546.13 ms (MAX.)
WDT clock: f
RL
Overflow time: 4.27 ms to 546.13 ms (MAX.)
WDT count continues.
STOP instruction
Interrupt
HALT
WDT count continues.
User's Manual U16898EJ3V0UD
Reset
RL
WDT clock is fixed to f .
RL
Select overflow time (settable only once).
Interrupt
STOP
WDT count continues.