455A Group
LCD power supply
LCD control signal
C1j
(Note 3)
0
1
(Note 1)
P00/SEG16,
P01/SEG17
(Note 2)
(Note 3)
C1j
(Note 1)
LCD power
supply
K00
Edge detection
circuit
Key-on wakeup
input
IAP0
instruction
(Note 3)
Register A
Aj
Pull-up
transistor
PU00
FR00
Aj
D
OP0A
instruction
T
Q
LCD power supply
C1k (Note 4)
0
1
LCD control signal
（Note1）
P02/SEG18,
P03/SEG19
（Note1）
(Note 4)
C1k
（Note2）
LCD power
supply
K01
Edge detection
circuit
Key-on wakeup
input
IAP0
instruction
(Note 4)
Register A
Ak
Pull-up
transistor
PU01
FR01
Ak
D
OP0A
instruction
T
Q
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.1.01 Feb 15, 2008 Page 11 of 146
REJ03B0224-0101
RENESAS [ RENESAS TECHNOLOGY CORP ]
