Read Panasonic KX-NT346RU (serv.man2) Service Manual online
69
KX-NT346RU/KX-NT346RU-B
13.1.5. IC4 (SUB-CPU)
Pin No.
Terminal Name
I/O Setting
Contents of Control
Remark
1
X1
I
Not in use
Connecting to Vcc
2
X2
O
OPEN
3
Vss
-
DG
4
OSC2
O
9.830MHz ceralock
5
OSC1
I
9.830MHz ceralock
6
TEST
I
Not in use
Connecting to GND
7
Vcc
- Power
terminal
+3.3V
8
nReset
I
Receive from IC1 (RESET)
Low active
9
P20/IRQ4/ADTAG
O
Transmit to Bluetooth Module(UART_CTS)
10
P21/SCK1
I
Receive from IC1 (SCLK_SUB)
11
P22/SI1
I
Receive from IC1 (TXD)
12
P23/SO1
O
Transmit to IC1 (RXD_SUB)
13
P24/SCK3
I
Not in use
Connecting to GND
14
P25/RxD
I
Receive from Bluetooth Module(UART_TX)
15
P26/TxD
O
Transmit to Bluetooth Module(UART_RX)
16
P27/IRQ0
I
DC_Alarm input
Low active
17
P17/IRQ3/TMIF
I
Receive from Bluetooth Module(UART_RTS)
18
P16/IRQ2
O
Connect to Bluetooth Module(PIO2)
19
P15/IRQ1
I
Connect to Bluetooth Module(PIO3)
20
P14
O
Connect to Bluetooth Module(PIO1)
21
P13/TMIG
I
Connect to Bluetooth Module(PIO0)
22
P12/TMOFH
O
Transmit to Blue tooth Module(RESET)
Low active
23
P11/TMOFL
I
KEYIN[8]
Low:push
24
P10/TMOW
O
Connect to IC19
25
PA3
I
KEYIN[7]
Low:push
26
PA2
I
KEYIN[6]
Low:push
27
PA1
I
KEYIN[5]
Low:push
28
P50/WKP0
I
KEYIN[4]
Low:push
29
P51/WKP1
I
KEYIN[3]
Low:push
30
P52/WKP2
I
KEYIN[2]
Low:push
31
P53/WKP3
I
KEYIN[1]
Low:push
32
P54/WKP4
I
Mode Select-1
Connecting 33k
Ω to GND
33
P55/WKP5
I
Mode Select-2
Connecting 33k
Ω to GND
34
P56/WKP6
O
KEYOUT1
35
P57/WKP7
I
KEY_HOOK
Low:OFF-HOOK, Hi:ON-HOOK
36
P60
O
C_LED1
Low:active
37
P61
O
C_LED2
Low:active
38
P62
O
C_LED3
Low:active
39
P63
O
C_LED4
Low:active
40
P64
O
C_LED5
Low:active
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