M38065M2AFP datasheet(17/58 Pages) RENESAS

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MITSUBISHI MICROCOMPUTERS

3806 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Fig. 6 Interrupt control

Fig. 7 Structure of interrupt-related registers

Interrupt disable flag (I)

Interrupt request

Interrupt request bit

Interrupt enable bit

BRK instruction

Reset

Interrupt edge selection register

INT0 active edge selection bit

INT1 active edge selection bit

Not used (returns “0” when read)

INT2 active edge selection bit

INT3 active edge selection bit

INT4 active edge selection bit

Not used (returns “0” when read)

(INTEDGE : address 003A16)

Interrupt request register 1

INT0 interrupt request bit

INT1 interrupt request bit

Serial I/O1 receive interrupt request bit

Serial I/O1 transmit interrupt request bit

Timer X interrupt request bit

Timer Y interrupt request bit

Timer 1 interrupt request bit

Timer 2 interrupt request bit

Interrupt control register 1

INT0 interrupt enable bit

INT1 interrupt enable bit

Serial I/O1 receive interrupt enable bit

Serial I/O1 transmit interrupt enable bit

Timer X interrupt enable bit

Timer Y interrupt enable bit

Timer 1 interrupt enable bit

Timer 2 interrupt enable bit

0 : No interrupt request issued

1 : Interrupt request issued

(IREQ1 : address 003C16)

(ICON1 : address 003E16)

Interrupt request register 2

CNTR0 interrupt request bit

CNTR1 interrupt request bit

Serial I/O2 interrupt request bit

INT2 interrupt request bit

INT3 interrupt request bit

INT4 interrupt request bit

AD converter interrupt request bit

Not used (returns “0” when read)

(IREQ2 : address 003D16)

Interrupt control register 2

CNTR0 interrupt enable bit

CNTR1 interrupt enable bit

Serial I/O2 interrupt enable bit

INT2 interrupt enable bit

INT3 interrupt enable bit

INT4 interrupt enable bit

AD converter 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

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