Renesas PCA4738L-64A Technical Information PDF herunterladen (Seite 18)

MITSUBISHI MICROCOMPUTERS

3802 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

15

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

b7 b0

b7 b0

b7 b0

b7 b0

b7 b0

Interrupt edge selection register

INT

0

active edge selection bit

INT

1

active edge selection bit

Not used (returns “0” when read)

INT

2

active edge selection bit

INT

3

active edge selection bit

INT

4

active edge selection bit

Not used (returns “0” when read)

(INTEDGE : address 003A

16

)

Interrupt request register 1

INT

0

interrupt request bit

INT

1

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

INT

0

interrupt enable bit

INT

1

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 003C

16

)

(ICON1 : address 003E

16

)

Interrupt request register 2

CNTR

0

interrupt request bit

CNTR

1

interrupt request bit

Serial I/O2 interrupt request bit

INT

2

interrupt request bit

INT

3

interrupt request bit

INT

4

interrupt request bit

AD converter interrupt request bit

Not used (returns “0” when read)

(IREQ2 : address 003D

16

)

Interrupt control register 2

CNTR

0

interrupt enable bit

CNTR

1

interrupt enable bit

Serial I/O2 interrupt enable bit

INT

2

interrupt enable bit

INT

3

interrupt enable bit

INT

4

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 003F

16

)

0 : Falling edge active

1 : Rising edge active

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 53 54

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