UPD75218 NEC, UPD75218 Datasheet - Page 25

• Manufacturer Part Number: UPD75218
• Description: 4-BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

INT4/
P00
INT0/
P10
INT1/
P11
INT2/
P12
Note
Note
Note
Noise eliminator
IM1
2
Rising edge
detection
circuit
Edge
detection
circuit
Edge
detection
circuit
INTTPG
INTSIO
INTKS
INTT0
IM0
Both edges
detection
circuit
INTW
2
INT
BT
IRQTPG
IRQSIO
IRQBT
IRQKS
IRQT0
IRQW
IRQ4
IRQ0
IRQ1
IRQ2
Fig. 6-1 Interrupt Control Circuit Block Diagram
Interrupt enable flag (IE
Internal bus
XXX
)
VRQn
(IME)
Priority control
circuit
4
IPS
Decoder
IST
2
Standby release
signal
Vector
table
address
generator
circuit