External Interrupts; Overview - Panasonic F77G User Manual

Chapter 3 Interrupts
3-3

External Interrupts

There are 5 external interrupts in this LSI. The circuit (external interrupt interface) for the external interrupt input
signal, is built-in between the external interrupt input pin and the interrupt controller block. This external inter-
rupt interface can manage to do with any kind of external interrupts.
3-3-1

Overview

Table 3-3-1 shows the list of functions which external interrupts 0 to 4 can be used.
External interrupt
input pin
Programmable active
edge interrupt
Both edges interrupt
Key input interrupt
Noise filter built-in
AC zero cross
detection
III - 38
External Interrupts
Table 3-3-1 External Interrupt Functions
External External
interrupt 0 interrupt 1
(IRQ0) (IRQ1)
P20 P21
- -
-
External External
interrupt 2 interrupt 3
(IRQ2) (IRQ3)
P22 P23
- -
- -
External
interrupt 4
(IRQ4)
P24,
P60-P67
(P24)
(P60-P67)
-