KX-TPA65RU, KX-TPA65RUB - Panasonic Telephone Service Manual (repair manual). Page 46

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46
KX-TPA65RU/KX-TPA65RUB
15.1.2.
IC201 (Sub CPU)
Pin No.
Terminal Name
I/O setting
Pull-up/down 
Processing
Contens of Control
Remark
1
DQ1
D.I/O
-
DQ1
Flash ROM data
2
QSCLK
D.O
-
QSCLK
Flash ROM control signal
3
DQ3
D.I/O
-
DQ3
Flash ROM data
4
DQ2
D.I/O
-
DQ2
Flash ROM data
5
DQ0
D.I/O
-
DQ0
Flash ROM data
6
VDD_DPU_DAIF
-
-
1.8V_2
Power supply input
7
VDD1
-
-
1.2V_2
Power supply input
8
COREOUT
-
-
COREOUT
Core Converter output to 1.2V_2
9
VBAT
-
-
[VBAT]
Power supply input via L201 from D3.2V 
10
DOUBCAP2N
-
-
<NC>
-
11
DOUBCAP2P
-
-
<NC>
-
12
DOUBCAP1N
-
-
<NC>
-
13
DOUBCAP1P
-
-
<NC>
-
14
DOUT3V0
-
-
<NC>
-
15
DOUT4V5
-
-
<NC>
-
16
LIN0
A.I
-
LIN0
Audio signal input from Headset MIC
17
LEDSINK2
-
-
<NC>
-
18
DCIN2
-
-
<NC>
-
19
DCIN3
-
-
<NC>
-
20
LEDSINK1
-
-
<NC>
-
21
VREF
-
-
VREF
-
22
VCCA
-
-
[VCCA]
Power supply input via R322 from VCCA 
23
MIN
A.I
-
MIN
Audio signal input  from Speaker phone MIC
24
MIP
A.I
-
MIP
Audio signal input  from Speaker phone MIC
25
HSMIN
A.I
-
HSMIN
Audio signal input  from Handset MIC
26
HSMIP
A.I
-
HSMIP
Audio signal input  from Handset MIC
27
MPWR
A.O
-
MPWR
MIC bias output
28
SPOUTP
A.O
-
SPOUTP
Audio signal output to Speaker phone receiver
29
VCCPA
-
-
[VCCPA]
Power supply input from VCCA
30
SPOUTN
A.O
-
SPOUTN
Audio signal output to Speaker phone receiver
31
HSSPOUTP
A.O
-
HSSPOUTP
Audio signal output to Handset receiver
32
LOUT
A.O
-
LOUT
Audio signal output to Headset receiver
33
PWM0
-
-
<NC>
-
34
DCINS
-
-
<NC>
-
35
XOUT
-
-
<NC>
-
36
XIN
-
-
XIN
BCLK input (13.824MHz)
37
VDD_APU
-
-
[VDD_APU]
Power supply output to 1.8V_2
38
VBAT_APU
-
-
[VBAT_APU]
Power supply input via L201 from D3.2V 
39
VDD_IF
-
-
[VDD_IF]
Power supply output
40
VCC_FE_IF
-
-
[VCC_FE_IF]
Power supply input via L201 from D3.2V 
41
VCC_PA
-
-
[VCC_PA]
Power supply input via L201 from D3.2V 
42
BAL_OUT2
-
-
[GND]
-
43
BAL_OUT1
-
-
[GND]
-
44
TX_SW
-
-
[GND]
-
45
ANT1
-
-
[GND]
-
46
GND_RF
-
-
[GND]
-
47
ANT2
-
-
[GND]
-
48
TEST
-
-
-
-
49
RX_SW
-
-
[GND]
-
50
LNA_INN
-
-
[GND]
-
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