Datasheet

78K0/Ix2 CHAPTER 18 INTERRUPT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 574
Feb 28, 2012
Figure 18-1. Basic Configuration of Interrupt Function (1/2)
(A) Internal maskable interrupt
Internal bus
Interrupt
request
IF
MK IE PR ISP
Priority controller
Vector table
address generator
Standby release signal
(B) External maskable interrupt (INTPm, INTCMP0 to INTCMP2)
Internal bus
Interrupt
request
IF
MK IE PR ISP
Priority controller
Vector table
address generator
Standby release signal
External interrupt edge
enable register
(EGPCTL0, EGNCTL0,
EGPCTL1, EGNCTL1)
Edge
detector
Remark m = 0, 2 to 4: 78K0/IY2, 78K0/IA2
m = 0 to 5: 78K0/IB2 (30 pins)
m = 0, 2 to 5: 78K0/IB2 (32 pins)
IF: Interrupt request flag
IE: Interrupt enable flag
ISP: In-service priority flag
MK: Interrupt mask flag
PR: Priority specification flag