NEC PD750008 - Manual (Page 219)

199
CHAPTER 6 INTERRUPT AND TEST FUNCTIONS
Examples 1. To use both INTBT and INT4 as having the higher priority and give priority to INT4
DI
SKTCLR IRQ4 ; IRQ4 = 1 ?
BR VSUBBT
Processing routine
EI of INT4
RETI
VSUBBT: CLR1 IRQBT
Processing routine
of INTBT
EI
RETI
2. To use both INTBT and INT4 as having the lower priority and give priority to INT4
SKTCLR IRQ4 ; IRQ4 = 1 ?
BR VSUBBT
Processing routine
of INT4
RETI
VSUBBT: CLR1 IRQBT
Processing routine
of INTBT
RETI
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