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Pin
No.
I/O Setting
Pull-up
Processing
Contents of Control
Remark
1
X1
I
-
not in use
Connecting to Vcc
2
X2
O
-
not in use
Open
3
Vss
-
GND
4
OSC2
O
-
Open
5
OSC1
I
-
8MHz clock
from 8.192MHz ASIC
6
TEST
I
-
not in use
Connecting to Vss
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
-
LCD_SCK
11
P22/SI1
I
Built-in
OP_Busy/
Low active
12
P23/SO1
O
-
LCD_DATA
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
-
Chrystal drive pulse of LCD
Timer output125KHz
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
26
Summary of Contents for KX-T7633
Page 4: ...4 LOCATION OF CONTROLS 4 ...
Page 9: ...Note Refer to 1 5 of WAVEFORM for waveform 8 2 LCD DOES NOT OPERATE 9 ...
Page 10: ...Note Refer to 6 of WAVEFORM for waveform 8 3 HANDSET DOES NOT WORK Receive Send 10 ...
Page 11: ...Note Refer to 7 8 of WAVEFORM for waveform 8 4 HEADSET DOES NOT WORK Receive Send Note 11 ...
Page 28: ...13 CABINET AND ELECTRICAL PARTS LOCATION 28 ...