NEC PD754144 User Manual page 187

2 4
IM2 IM0
INTBT
Edge
INT0/P61
Note1
detector
INTT0
INTT1
INTT2
INTEE
KR4/P70
Falling edge
Note2
detector
KR7/P73
Key return reset circuit
Interrupt enable flag (IE×××)
IRQBT
IRQ0
IRQT0
IRQT1
IRQT2
IRQEE
IRQ2
IM2
Internal bus
IME
VRQn
IPS IST1 IST0
Decoder
Vector table
address
Priority controller
generator
Standby release
signal