4502 Datasheet, PDF (8/116 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4502 Group
Register A ^{IAP0 instruction}
Ai
(Note 2)
Ai
D
OP0A instruction T Q
Key-on wakeup input
K0i
“L” level
detection circuit
Pull-up transistor
PU0i ^{(Note 2)}
(Note 1)
P00, P01 (Note 4)
Register A ^{IAP0 instruction}
Aj
(Note 3)
Aj
D
OP0A instruction _{T Q}
Key-on wakeup
K0j
“L” level detection
circuit
Pull-up transistor
PU0j ^{(Note 3)}
(Note 1)
P02, P03 (Note 4)
Notes 1:
This symbol represents a parasitic diode on the port.
2: i represents 0 or 1.
3: j represents 2 or 3.
4: Applied potential to port P0 must be VDD or less.
Port block diagram (2)
Rev.3.01 2005.02.02 page 8 of 112
REJ03B0105-0301