Panasonic CQ-C7105U, Service Manual

Page: 13 / 44

IC900:YEAMB90488BP
Pin
No. Port Description I/O (V)
1 P22/A18 A18 in Address bus O 3.5
2 P23/A19 A19 in Address bus O 3.5
3 P24/A20/
PPG0 A20 in Address bus O 3.5
4 P25/A21/
PPG1 NC O -
5 P26/A22/
PPG2 LED_G Control O 0.7
6 P27/A23/
PPG3 LED_B Control O 0.7
7 P30/A00/
AIN0 LCD driver data command
distinction terminal 0 3.5
8 P31/A01/
BIN0 A0 in Address bus O 3.5
9 VSS GND -- 0
10 P32/A02/
ZIN0 A1 in Address bus O 3.5
11 P33/A03/
AIN1 A2 in Address bus O 3.5
12 P34/A04/
BIN1 A3 in Address bus O 3.5
13 P35/A05/
ZIN1 A4 in Address bus O 3.5
14 P36/A06/
PWC0 A5 in Address bus O 3.5
15 P37/A07/
PWC1 A6 in Address bus O 0
16 P40/A08/
SIN2 A7 in Address bus O 3.5
17 P41/A09/
SOT2 A8 in Address bus O 0
18 P42/A10/
SCK2 A9 in Address bus O 0
19 P43/A11/
MT00 A10 in Address bus O 3.5
20 P44/A12/
MT01 A11 in Address bus O 3.5
21 VCC +3.3v power supply -- 3.5
22 P45/A13/
EXTC A12 in Address bus O 3.2
23 P46/A14/
OUT4 A13 in Address bus O 3.2
24 P57/A15/
OUT5 A14 in Address bus O 3.2
25 P70/SIN0 Serial data from Main CPU or
Flash writer O 3.2
26 P71/SOT0 Serial data from Main CPU or
Flash writer O 3.5
27 P71/SCK0 External Flash rewriting switch I 3.5
28 P73/TIN0 NC O -
29 P74/TOT0 Flash reset O 3.5
30 P75/PWC2 Key scan 1 I 0
31 P76/SCL NC O -
32 P77/SDA NC O -
33 AVCC +3.3 Power supply -- 3.5
34 AVRH +3.3 Power supply -- 3.5
35 AVSS/AVRL GND -- 0
36 P60/AN0 Key matrix setting I 3.5
37 P61/AN1 Key scan 2 I 0
38 P62/AN2 Key scan 3 I 0
39 P63/AN3 NC O -
40 VSS GND -- 0
41 P64/AN4 Key-in return 5 I 0
42 P65/AN5 Key-in return 4 I 0
43 P66/AN6 Key-in return 3 I 0
44 P67/AN7 Key-in return 2 I 0
45 P80/IRQ0 NC I 0
46 P81/IRQ1 NC I 3.8
47 MD0 MODE SET 0 I 3.5
48 MD1 MODE SET 1 I 3.5
49 MD2 MODE SET 2 I 0
50 P82/IRQ2 NC O -
51 P83/IRQ3 Volume-up detection from
Rotary encoder I 3.2
Pin
No. Port Description I/O (V)
52 P84/IRQ4 Volume-down detection from
Rotary encoder I 3.2
53 P85/IRQ5 NC O -
54 P86/IRQ6 NC O -
55 P87/IRQ7 NC O -
56 P90/SIN1/CS
0 NC O -
57 P91/SOT1/
CS1 NC O -
58 P92/SCK1/
CS2 chip enable for Flash memory O 3.5
59 P93/FRCK/AD
TG/CS3 LCD chip select O 3.5
60 PN94/PPG4 LED_R Control O 0.7
61 PN95/PPG5 NC O -
62 P96/IN0 NC O -
63 P97/IN1 NC O -
64 PA0/OUT0 Power control for LCD O 3.5
65 PA1/OUT1 NC O -
66 PA2/OUT2 NC O -
67 PA3/OUT3 NC O -
68 P50/ALE NC O -
69 P51/RDX output enable for Flash memory O 3.4
70 P52/WRLX Write strobe for LCD O 3.4
71 P53/WRHX Write enable O 3.4
72 P54/HRQ NC O -
73 P55/HAKX Reset for LCD O 3.4
74 P56/RDY Ready/Busy from Flash memory I 3.4
75 RSTX RESET I 3.5
76 P57/CLK NC O -
77 X1A NC O -
78 X0A NC I -
79 VSS GND -- 0
80 X0 System clock (12.5MHZ) I 3.2
81 X1 System clock (12.5MHZ) O 3.2
82 VCC +3.3 Power supply -- 3.5
83 P00/AD00/
D00 D0 in Address bus I 3.8
84 P01/AD01/
D01 D1 in Address bus I 3.8
85 P02/AD02/
D02 D2 in Address bus I 3.8
86 P03/AD03/
D03 D3 in Address bus I 3.8
87 P04/AD04/
D04 D4 in Address bus I 3.8
88 P05/AD05/
D05 D5 in Address bus I 3.8
89 P06/AD06/
D06 D6 in Address bus I 3.8
90 P07/AD07/
D07 D7 in Address bus I 3.8
91 P08/AD08/
D08 D8 in Address bus I/O 3.8
92 P09/AD09/
D09 D9 in Address bus I/O 3.8
93 P10/AD10/
D10 D10 in Address bus I/O 3.8
94 P11/AD11/
D11 D11 in Address bus I/O 3.8
95 P12/AD12/
D12 D12 in Address bus I/O 3.8
96 P13/AD13/
D13 D13 in Address bus I/O 3.8
97 P14/AD14/
D14 D14 in Address bus I/O 3.8
98 P15/AD15/
D15 D15 in Address bus I/O 3.8
99 P20/A16 A15 in Address bus O 3.8
100 P21/A17 A16 in Address bus O 3.8
11.2. Display Block
13
CQ-C7105U