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Pin
Port
No.
88 ILL SENS
Pulled up to H
89 NC
Not connected
90 EP DO
EPROM comuni. data
input
91 NC
Not connected
92 NC
Not connected
93 SUB RESET
Reset for display CPU
94 DISPM CONT
5V power control for
Display
95 NC
Not connected
96 NC
Not connected
97 NC
Not connected
98 S LED
Security LED drive
99 ANT CONT
Power
antenna motor
100 NC
Not connected
4.1.2.
Display Block
IC900 ： C2CBYY000150
Pin
Port
No.
1
A18
A18 in Address bus
2
A19
A19 in Address bus
3
A20
A20 in Address bus
4
A21
Not connected
5
A22
Not connected
6
A23
Not connected
7
A0
A0 in address bus for LCD
8
A1
A1 in Address bus
9
VSS
GND
10 A2
A2 in Address bus
11 A3
A3 in Address bus
12 A4
A4 in Address bus
13 A5
A5 in Address bus
14 A6
A6 in Address bus
15 A7
A7 in Address bus
16 A8
A8 in Address bus
17 A9
A9 in Address bus
18 A10
A10 in Address bus
19 A11
A11 in Address bus
20 A12
A12 in Address bus
21 VCC
+3.3V Power supply
22 A13
A13 in Address bus
23 A14
A14 in Address bus
24 A15
A15 in Address bus
25 SIN0
Serial data from Main CPU or Flash
writer
26 SOT0
Serial data to Main CPU or Flash writer
27 SCK0
Serial clock for Flash writer
28 NC
Not connected
29 FRASH
Reset for Flash memory
RESET
30 KS1
Key scan 1
31 NC
Not connected
32 NC
Not connected
33 AVCC
+3.3V Power supply
34 AVRH
+3.3V Power supply
35 AVSS/
GND
AVRL
36 TH
Pulled up to H
DETECT
37 KS2
Key scan 2
38 KS3
Key scan 3
39 NC
Not connected
40 VSS
GND
Description
I/O FM
-
5
-
-
O/I
0
-
-
-
-
O
4.9
O
0
-
-
-
-
-
-
O
0
control
for
O
5.2
-
-
Description
AM
CD
Pin
Port
No.
5
5
41 KI5
-
-
42 KI4
0
0
43 KI3
44 KI2
-
-
45 NC
-
-
46 NC
5
4.9
47 MD0
0
0
48 MD1
-
-
-
-
49 MD2
-
-
50 NC
0
5
51 ROTARY 1 Volume-up
5.2
5.2
52 ROTARY 2 Volume-down detection from Rotary
-
-
53 NC
54 NC
55 NC
56 NC
57 NC
I/O
(V)
58 FLASH CE Chip enable for Flash memory
59 LCD CS
O
1.5
60 NC
O
1.7
61 NC
O
1.3
62 NC
-
-
63 NC
-
-
64 VLCD
-
-
CONT
O
1.3
65 NC
O
0.3
66 NC
-
-
67 NC
O
0.4
68 NC
O
0.4
69 OE/RD
O
0.4
O
1.3
70 LCD WR
O
0.4
71 FLASH WE Write enable for Flash memory
O
0
72 NC
O
1.3
73 LCD
O
0
RESET
O
0
74 FLASH RY/
O
1.5
BY
O
1.7
75 RST
-
3.5
76 NC
O
1.4
77 NC
O
1.5
78 X0A
O
1.7
79 VSS
I
0.5
80 X0
81 X1
O
1.8
82 VCC
I
3.5
83 D0
-
-
84 D1
O
3.5
85 D2
86 D3
O
0
87 D4
-
-
88 D5
-
-
89 D6
-
3.5
90 D7
-
3.5
91 D8
-
-
92 D9
93 D10
-
1.3
94 D11
O
0
95 D12
96 D13
O
0
97 D14
-
-
98 D15
-
-
6
Description
Key-in return 5
Key-in return 4
Key-in return 3
Key-in return 2
Pulled down to L
Pulled up to H
Operating mode control 0 from Flash
writer
Operating mode control 1: pulled up to
H
Operating mode control 2 from Flash
writer
Not connected
detection
from
encoder
encoder
Not connected
Not connected
Not connected
Not connected
Not connected
LCD chip select
Not connected
Not connected
Not connected
Not connected
Power control for LCD
Not connected
Not connected
Not connected
Not connected
Output enable for Flash memory or
Read strobe for LCD
Write strobe for LCD
Not connected
Reset for LCD
Ready/Busy from Flash memory
Reset
Not connected
Not connected
GND
GND
System clock (12.5MHz)
System clock (12.5MHz)
+3.3V Power supply
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
I/O
(V)
I
0
I
0
I
0
I
0
-
0
-
3.5
I
3.5
-
3.5
I
0
-
-
Rotary
I
2.5
I
2.5
-
-
-
-
-
-
-
-
-
-
O
3.4
O
3.4
-
-
-
-
-
-
-
-
O
3.4
-
-
-
-
-
-
-
-
O
3.4
O
3.4
O
3.4
-
-
O
3.4
I
3.4
I
3.5
-
-
-
-
-
-
-
-
I
1.3
O
1.5
-
3.5
I/O
0.9
I/O
0.9
I/O
1.1
I/O
0.9
I/O
1
I/O
1.1
I/O
1.1
I/O
0.9
I/O
0.9
I/O
0.9
I/O
0.9
I/O
0.5
I/O
0.9
I/O
0.7
I/O
0.7
I/O
0.7
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