UPD17062 datasheet(116/298 Pages) RENESAS

116 / 298 page

114

µPD17062

Fig. 11-3

Interrupt Reception Timing Chart (1/2)

(1) When one interrupt (e.g., rising edge at the INTNC pin) is used

(a) When an interrupt mask time is not set by the interrupt permission flag

# When the MOVT instruction or a normal instruction that does not satisfy the skip conditions is

executed at interrupt acceptance

$ When the MOVT instruction or an instruction satisfying the skip conditions is executed at

interrupt reception

(b) When an interrupt holding period is set by the interrupt permission flag

Instruction

MOV

WR, #0001B

POKE

INTPM, WR

INTE

INTNC pin

IRQNC flag

IPNC flag

Interrupt acceptance

Normal

instruction

Interrupt

cycle

or 12

1 instruction cycle:

Interrupt permission

period

Interrupt processing

routine

Instruction

MOV

WR, #0001B

POKE

INTPM, WR

INTE

INTNC pin

IRQNC flag

IPNC flag

Interrupt processing

routine

MOVT DBF,

@AR skip

instruction

Interrupt

cycle

Interrupt acceptance

Instruction

MOV

WR, #0001B

POKE

INTPM, WR

INTE

INTNC pin

IRQNC flag

IPNC flag

Interrupt acceptance

Interrupt

cycle

Interrupt holding period

Interrupt processing

routine

UPD17062 Fiches technique(PDF) 116 Page - Renesas Technology Corp

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