Read Panasonic KX-DT321UA Service Manual online
37
KX-DT321UA/KX-DT321UA-B
13.2. IC6
Pin
No.
I/O Setting
Pull-up
Processing
Contents of Control
Remark
1
X1
I
-
not in use
Connected to Vcc
2
X2
O
-
not in use
3
Vss
-
GND
4
OSC2
O
-
not in use
5
OSC1
I
-
8.192MHz clock
from IC2
6
TEST
I
-
not in use
Connected to GND
7
VSS
-
Vcc
8
Reset/
I
-
Reset input
9
P20/IRQ4
O
-
CODEC chip select
10
P21/SCK1
O
-
SCLK
11
P22/SI1
O
-
Sp Phone chip select
12
P23/SO1
O
-
DATA
13
CLM0
O
-
LCD Serial Clock
14
P24/SCK3
I
Built-in
LCD Serial Receive
15
P26/TxD
O
-
LCD Serial Transmit
16
P27/IRQ0
I
-
not in use
Connected to GND
17
P17/IRQ3
I
Built-in
Hook SW
L:OFF-HOOK
18
P16/IRQ2
I
Built-in
ASIC INT/
Low active
19
P15/IRQ1
I/O
-
LCD contrast 2
Cont.H/M:L Cont.L:High"Z"
20
P14
I/O
Built-in
KEYOUT3
L output
21
P13/TMIG
I/O
Built-in
KEYOUT2
L output
22
P12/TMOFH
I/O
Built-in
KEYOUT1
L output
23
P11/TMOFL
I/O
Built-in
KEYOUT0
L output
24
P10/TMOW
O
-
OSC for LCD Power
128kHz(4.096MHz/32)
25
PA3
O
-
side tone Cont.
H:side tone ON
26
PA2
O
-
ASIC REN/
Low active
27
PA1
O
-
ASIC WEN/
Low active
28
P50/WKP0
I
Built-in
KEYIN0
29
P51/WKP1
I
Built-in
KEYIN1
30
P52/WKP2
I
Built-in
KEYIN2
31
P53/WKP3
I
Built-in
KEYIN3
32
P54/WKP4
I
Built-in
KEYIN4
33
P55/WKP5
I
Built-in
KEYIN5
34
P56/WKP6
I
Built-in
KEYIN6
35
P57/WKP7
I
Built-in
KEYIN7
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
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