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• IC5003
I/O EXPANSION (µPD71055GB-10-3B4) / PICTURE BOARD (3/3)
Pin No.
Pin Name
1
NC
2
CS
3
GND
4, 5
A2, A1
6 ~ 10
P27 ~ P24, P20
11
P21
12
P22
13
P23
14 ~ 16
P10 ~ P12
17
NC
18 ~ 22
P13 ~ P17
23
VDD
24 ~ 31
D7 ~ D0
32
RESET
33, 34
NC
35
WR
36 ~ 41
P07 ~ P02
42
P01
43
P00
44
RD
TE
L 13942296513
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I/O
—
Not used
I
Chip select input from gate array
—
Ground
I
Address input
—
Not used
I
BUSY signal input from image loading control microprocessor
O
Strobe signal output to image loading control microprocessor
—
Not used
I/O
Data input/output
—
Not used
I/O
Data input/output
—
Power supply (+5 V)
I/O
Data input/output
I
Reset input
—
Not used
I
Write strobe input
—
Not used
I
PSD signal input from IRDA
I
BUSY signal input from IR controller
I
Read strobe input
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2 9
8
Description
Q Q
3
6 7
1 3
1 5
co
.
— 139 —
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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