Read Panasonic KX-T7630RU Service Manual online
37
KX-T7630RU-B
13.1.2. IC3 (CPU)
Pin
No.
I/O Setting
Pull-up
Processing
Contents of Control
Remark
1
X1
I
-
not inuse
Connecting to Vcc
2
X2
O
-
not inuse
Open
3
Vss
-
GND
4
OSC2
O
-
Open
5
OSC1
I
-
8 MHz clock
from 8.192MHz ASIC
6
TEST
I
-
not inuse
Connecting to Vcc
7
Vcc
-
Power terminal
+3.3V
8
Reset/
I
-
Reset input
Low active
9
P20/IRQ4
I
Built-in
OP-Rx-Rdy
10
P21/SCK1
O
-
not inuse
11
P22/SI1
I
Built-in
OP_Busy/
Low active
12
P23/SO1
O
-
not inuse
13
P24/SCK3
O
Built-in
OP_SCK
14
P25/RxD
I
Built-in
OP_RXD
15
P26/TxD
O
-
OP_TXD
16
P27/IRQ0
I
(out)
OP-Tx-En
17
P17/IRQ3
I
Built-in
Hook detection/
L:OFF-HOOK
18
P16/IRQ2
I
Built-in
GA_RxINT/
Low active
19
P15/IRQ1
I/O
Built-in
KEYOUT0
20
P14
I/O
Built-in
KEYOUT1
21
P13/TMIG
I/O
Built-in
KEYOUT2
22
P12/TMOFH
I/O
Built-in
KEYOUT3
23
P11/TMOFL
I/O
Built-in
KEYOUT4
24
P10/TMOW
O
-
not inuse
25
PA3
I/O
(out)
KEYOUT5
26
PA2
O
-
REN/
Low active
27
PA1
O
-
WEN/
Low active
28
P50/WKP0
I
Built-in
KEY-IN0
29
P51/WKP1
I
Built-in
KEY-IN1
30
P52/WKP2
I
Built-in
KEY-IN2
31
P53/WKP3
I
Built-in
KEY-IN3
32
P54/WKP4
I
Built-in
KEY-IN4
33
P55/WKP5
I
Built-in
KEY-IN5
34
P56/WKP6
I
Built-in
KEY-IN6
35
P57/WKP7
O
Built-in
not in use
36
P60
I/O
Built-in
DB0
37
P61
I/O
Built-in
DB1
38
P62
I/O
Built-in
DB2
39
P63
I/O
Built-in
DB3
40
P64
I/O
Built-in
DB4
41
P65
I/O
Built-in
DB5
42
P66
I/O
Built-in
DB6
43
P67
I/O
Built-in
DB7
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