M38B53M4-059FP datasheet(300/355 Pages) MITSUBISHI

300 / 355 page

3-52

APPENDIX

38B5 Group User’s Manual

3.5 Control registers

Fig. 3.5.36 Structure of interrupt edge selection register

Fig. 3.5.35 Structure of interrupt source switch register

Interrupt source switch register

b7 b6 b5 b4 b3 b2 b1 b0

Interrupt source switch register

(IFR: address 3916)

Name

Functions

At reset R W

0: INT4 interrupt

1: A-D conversion intrerrupt

INT3/serial I/O2

transmit interrupt

switch bit (Note)

INT4/A-D

conversion interrupt

switch bit

Nothing is arranged for these bits. These are

write disabled bits. When these bits are read

out, the contents are “0”.

0: INT3 intrrupt

1: Serial I/O2 transmit

interrupt

Note: In the mask option type P, this bit is not available because INT3

function cannot be used.

Interrupt edge selection register

b7 b6 b5 b4 b3 b2 b1 b0

Interrupt edge selection register

(INTEDGE : address 3A16)

Name

Functions

At reset R W

INT0 interrupt edge

selection bit

INT1 interrupt edge

selection bit

INT3 interrupt edge

selection bit (Note)

INT4 interrupt edge

selection bit

INT2 interrupt edge

selection bit

0 : Falling edge active

1 : Rising edge active

0 : Falling edge active

1 : Rising edge active

0 : Falling edge active

1 : Rising edge active

0 : Falling edge active

1 : Rising edge active

0 : Falling edge active

1 : Rising edge active

CNTR0 pin edge

switch bit

CNTR1 pin edge

switch bit (Note)

0 : Rising edge count

1 : Falling edge count

0 : Rising edge count

1 : Falling edge count

Nothing is arranged for this bit. This is a write

disabled bit. When this bit is read out, the

contents are “0”.

Note: In the mask option type P, these bits are not available because

CNTR1 function and INT3 function cannot be used.

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