4559 Datasheet, PDF (11/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4559 Group
LCD power supply
LCD control signal
Key-on wakeup
input
(Note 3)
C1j
K00
Edge detection
circuit
(Note 3)
IAP0
instruction
Register A
Aj
LCD power
supply
FR00
Aj
D
OP0A _{T Q}
instruction
0 1 ^{C1j (Note 3)}
(Note 1)
P00/SEG16,
P01/SEG17
(Note 1) (Note 2)
Pull-up
transistor
PU0j
(Note 3)
LCD power supply
LCD control signal
Key-on wakeup
input
(Note 4)
C1K
K01
Edge detection
circuit
IAP0
(Note 4) _instruction
Register A
Ak
LCD power
supply
FR01
Ak
D
OP0A
instruction ^{T Q}
0 1 ^C1K (Note 4)
(Note 1)
P02/SEG18,
P03/SEG19
(Note 1) _{(Note 2)}
Pull-up
transistor
PU0k
(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 5. Port block diagram (3)
Rev.1.04 Aug 23, 2007 Page 11 of 146
REJ03B0188-0104