Panasonic KX-T7636 Service Manual page 27

Pin No. I/O Setting
18 P16/IRQ2
19 P15/IRQ1
20 P14
21 P13/TMIG
22 P12/TMOFH
23 P11/TMOFL
24 P10/TMOW
25 PA3
26 PA2
27 PA1
28 P50/WKP0
29 P51/WKP1
30 P52/WKP2
31 P53/WKP3
32 P54/WKP4
33 P55/WKP5
34 P56/WKP6
35 P57/WKP7
36 P60
37 P61
38 P62
39 P63
40 P64
41 P65
42 P66
43 P67
44 P70
45 P71
46 P72
47 P73
48 P74
49 P75
50 P76
51 P77
52 P80
53 P81
54 P82
55 P83
56 P84
57 P85
58 P86
Pull-up
Processing
I Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
O -
I/O (out)
O -
O -
I Built-in
I Built-in
I Built-in
I Built-in
I Built-in
I Built-in
I Built-in
O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
I/O Built-in
O -
O -
O -
O -
O -
O -
O -
O -
O -
O -
I/O (out)
O -
O -
O out(down]) LCD_Reset/
O -
Contents of Control
GA_RxINT/
KEYOUT0
KEYOUT1
KEYOUT2
KEYOUT3
KEYOUT4
Chrystal drive pulse of LCD Timer output125KHz
KEYOUT5
REN/
WEN/
KEY-IN0
KEY-IN1
KEY-IN2
KEY-IN3
KEY-IN4
KEY-IN5
KEY-IN6
not in use
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
AD0/KEY-OUT6
AD1/KEY-OUT7
AD2
AD3
AD4
AD5
AD6
SP_AMP OFF
MIC switch
EEPROM CLK
EEPROM DATA
CODEC CS
Control of back light
LCD_CS1/
Remark
Low active
Low active
Low active
H:OFF L:ON
L: Hand set H: Head
set
Clock output
Serial data input/
output
H: Back light ON
Low active