4559 Datasheet, PDF (12/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4559 Group
LCD power supply
LCD control signal
Key-on wakeup
input
(Note 3)
C2j
K02
Edge detection
circuit
(Note 3)
Register A
Aj
IAP1
instruction
LCD power
supply
FR02
Aj
D
OP1A _{T Q}
instruction
0 1 ^{C2j (Note 3)}
(Note 1)
P10/SEG20,
P11/SEG21
(Note 1)(Note 2)
Pull-up
transistor
PU1j
(Note 3)
Key-on wakeup
input
LCD power supply
LCD control signal
(Note 4)
C2k
K03
Edge detection
circuit
(Note 4)
Register A
Ak
IAP1
instruction
LCD power
supply
FR03
Ak
D
OP1A _{T Q}
instruction
0 1 ^{C2k (Note 4)}
(Note 1)
P12/SEG22,
P13/SEG23
(Note 1)(Note 2)
Pull-up
transistor
PU1k
(Note 4)
Notes 1.
This symbol represents a parasitic diode on the port.
2. Applied potential to these ports must be VDD or less.
3. j represents bits 0, 1.
4. k represents bits 2, 3.
Fig 6. Port block diagram (4)
Rev.1.04 Aug 23, 2007 Page 12 of 146
REJ03B0188-0104