NEC PD750008 - Manual (Page 204)

184
µPD750008 USER'S MANUAL
Figure 6-1. Block Diagram of Interrupt Control Circuit*
2
IM2
14
IRQBT
IRQ4 IRQ0 IRQ1
IRQCSI IRQT0 IRQT1 IRQW IRQ2
INTBT
INT4/P00 INT0/P10 INT1/P11
INTCSI
INTT0 INTT1 INTW
INT2/P12
Both-edge detection circuit IM0
Edge detection circuit
Edge detection circuit
Rising edge detection circuit Falling edge detection circuit
KR0/P60 KR7/P73
Selec- tor
IM2
Interrupt enable flag (IExxx)
IPS
IST0
IME
Priority control circuit
Decoder
VRQn
Vector table address generator
Standby release signal
Internal bus
Selec- tor
Note
IM1
Note
Noise eliminator (when the noise eliminator is selected, standby mode cannot be released.)
IST1