NEC PD78F9488 - Manual (Page 293)

CHAPTER 16 INTERRUPT FUNCTIONS
User’s Manual U15331EJ4V1UD
293
Figure 16-1. Basic Configuration of Interrupt Function
(A) Internal non-maskable interrupt
Internal bus
Interrupt request
Vector table
address generator
Standby release signal
(B) Internal maskable interrupt
MK
IF
IE
Internal bus
Interrupt request
Vector table
address generator
Standby release signal
(C) External maskable interrupt
MK
IF
IE
Internal bus
INTM0, INTM1,
KRM00, KRM01
Interrupt
request Edge
detector
Vector table
address generator
Standby
release signal
INTM0:
External interrupt mode register 0
INTM1: External interrupt mode register 1
KRM00: Key return mode register 00
KRM01: Key return mode register 01
IF:
Interrupt request flag
IE: Interrupt enable flag
MK: Interrupt mask flag