µPD178023, 178024
Figure 4-1. Basic Configuration of Interrupt Function (1/2)
(A) Internal non-maskable interrupt
Internal bus
Vector table
address generation
circuit
Interrupt
request
Priority control
circuit
Standby release
signal
(B) Internal maskable interrupt
Internal bus
MK
IE
PR
ISP
Vector table
address generation
circuit
Priority control
circuit
Interrupt
IF
request
Standby release
signal
(C) External maskable interrupt
Internal bus
External interrupt rising/
falling edge enable
registers (EGP, EGN)
MK
IE
PR
ISP
Vector table
address generation
circuit
Priority control
circuit
Edge detection
circuit
Interrupt
request
IF
Standby release
signal
Data Sheet U14126EJ1V0DS00
29
NEC [ NEC ]
