UPD75238GJ NEC [NEC], UPD75238GJ Datasheet - Page 132

• Manufacturer Part Number: UPD75238GJ
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC [NEC]

Noise
eliminator
INT4
/P00
INT0
/P10
INT1
/P11
INT2
/P12
IM1
2
Rising edge
detection
circuit
Edge
detection
circuit
Edge
detection
circuit
INTCSI0
INTTPG
IM0
Both-edge
detection
circuit
INTT0
INTKS
INTW
2
INT
BT
IRQCSI0
IRQTPG
IRQBT
IPQKS
IRQT0
IRQW
IRQ4
IRQ0
IRQ1
IRQ2
Fig. 5-1 Block Diagram of Interrupt Control Circuit
Interrupt enable flag (IE
Internal bus
)
VRQn
(IME)
Priority control circuit
4
IPS
Decoder
IST
2
Standby release signal
Vector table
address
generator