38C3 datasheet(18/63 Pages) RENESAS

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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

38C3 Group

Interrupt edge selection register

INT0 interrupt edge selection bit

INT1 interrupt edge selection bit

INT2 interrupt edge selection bit

Not used (return “0” when read)

CNTR0 active edge switch bit

CNTR1 active edge switch bit

(INTEDGE : address 003A16)

Interrupt request register 1

INT0 interrupt request bit

INT1 interrupt request bit

INT2 interrupt request bit

Serial I/O interrupt request bit

Timer A interrupt request bit

Timer 1 interrupt request bit

Timer 2 interrupt request bit

Timer 3 interrupt request bit

Interrupt control register 1

INT0 interrupt enable bit

INT1 interrupt enable bit

INT2 interrupt enable bit

Serial I/O interrupt enable bit

Timer A interrupt enable bit

Timer 1 interrupt enable bit

Timer 2 interrupt enable bit

Timer 3 interrupt enable bit

0 : No interrupt request issued

1 : Interrupt request issued

(IREQ1 : address 003C16)

(ICON1 : address 003E16)

Interrupt request register 2

Timer 4 interrupt request bit

Timer 5 interrupt request bit

Timer 6 interrupt request bit

CNTR0 interrupt request bit

CNTR1 interrupt request bit

Key input interrupt request bit

AD conversion interrupt request bit

Not used (returns “0” when read)

(IREQ2 : address 003D16)

Interrupt control register 2

Timer 4 interrupt enable bit

Timer 5 interrupt enable bit

Timer 6 interrupt enable bit

CNTR0 interrupt enable bit

CNTR1 interrupt enable bit

Key input interrupt enable bit

AD conversion interrupt enable bit

Not used (returns “0” when read)

(Do not write “1” to this bit)

0 : Interrupts disabled

1 : Interrupts enabled

(ICON2 : address 003F16)

0 : Falling edge active

1 : Rising edge active

0 : Falling edge active, rising edge count

1 : Rising edge active, falling edge count

Interrupt request bit

Interrupt enable bit

Interrupt disable flag (I)

BRK instruction

Reset

Interrupt request

Fig. 13 Interrupt control

Fig. 14 Structure of interrupt-related registers

38C3 Datasheet(PDF) 18 Page - Renesas Technology Corp

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