UPD789304 Datasheet, PDF (28/64 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD789304, 789306, 789314, 789316
Figure 6-1. Basic Configuration of Interrupt Function
(A) Internal non-maskable interrupt
Internal bus
Interrupt request
(B) Internal maskable interrupt
Vector table
address generator
Standby release signal
Internal bus
MK
IE
Interrupt request
IF
(C) External maskable interrupt
INTM0, INTM1, KRM00
Vector table
address generator
Standby release signal
Internal bus
MK
IE
Interrupt request
Edge
detector
IF
INTM0: External interrupt mode register 0
INTM1: External interrupt mode register 1
KRM00: Key return mode register 00
IF:
Interrupt request flag
IE:
Interrupt enable flag
MK: Interrupt mask flag
Vector table
address generator
Standby release signal
28
Data Sheet U14384EJ1V0DS