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KX-TG7321RUC, KX-TG7321RUS, KX-TGA731RUC, KX-TGA731RUS (serv.man2) - Panasonic Telephone Service Manual (repair manual). Page 92

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92
KX-TG7321RUC/KX-TG7321RUS/KX-TGA731RUC/KX-TGA731RUS
14.2. CPU Data (Handset)
14.2.1. IC1 (BBIC)
Pin No.
Description
I/O
Connection
at Normal mode
at Reset mode
1
VSS_LNA1
-
GND
-
-
2
RF_RXp
A.I
RF_RXp
A.I
A.I
3
RF_RXn
A.I
RF_RXn
A.I
A.I
4
VSS_LNA2
-
GND
-
-
5
RFP1
D.O
RXON
O_0/1
Hi-Z
6
RFP0
D.O
ANT1
O_0/1
Hi-Z
7
REF_RES
A.O
REF_RES
A.O
A.O
8
AVS_XTAL
-
GND
-
-
9
XTAL2
A.I
XTAL2
A.I
A.I
10
XTAL1
A.I
XTAL1
A.I
A.I
11
AVD_XTAL
-
AVD_XTAL
-
-
12
RF_SUPPLY1
-
RF_SUPPLY1
-
-
13
LDO_CTRL
A.O
LDO_CTRL
A.O
O-1
14
AVD
-
+1.8V
-
-
15
LSRn
A.O
LSRn
A.O
A.O
16
LSRp
A.O
LSRp
A.O
A.O
17
VREFm
-
GND
-
-
18
MICh
A.I
N.C.
A.I
A.I
19
CIDOUT/MICn
A.I
MICn
A.I
A.I
20
CIDINn/MICp
A.I
MICp
A.I
A.I
21
CIDINp/VREFp
A.O
VREFp
A.O
A.I
22
RINGp/P3_7
D.O
COL4
O_0/1
A.I
23
RINGn/P3_6
D.O
COL3
O_0/1
A.I
24
RINGOUT/RINGING/
P3_5
D.O
COL2
O_0/1
A.I
25
PARADET/P3_4
D.O
COL1
O_0/1
A.I
26
ADC0/P3_3
D.O
COL0
O_0/1
A.I
27
ADC1/INT0/P1_0
D.I
ROW0
I_0/1
I-PU
28
NTC/ADC2
A.I
ADC2
I_0
A.I
29
SOCp
A.I
SOCp
A.I
A.I
30
SOCn
A.I
SOCn
A.I
A.I
31
CHARGE_CTRL
A.O
CHARGE_CTRL
A.O
O-0
32
P1_7/CHARGE
A.I
CHARGE
A.I
I-PD
33
PAOUTp/P3_1
A.O
PAOUTp
A.O
O-0
34
VDDPA
-
VDDPA
-
-
35
PAOUTn/P3_0
A.O
PAOUTn
A.O
O-0
36
VBAT1
-
VBAT1
-
-
37
CP_C1x
A.I/O
CP_C1x
A.I/O
A.I
38
CP_C2x
A.I/O
CP_C2x
A.I/O
A.I
39
CP_C1y
A.I/O
CP_C1y
A.I/O
A.I
40
VBAT2
-
VBAT2
-
-
41
CP_C2y
A.I/O
CP_C2y
A.I/O
A.I
42
CP_VOUT1/LED1
A.O
CP_VOUT1
A.O
A.I
43
CP_VOUT2/LED2
A.O
CP_VOUT2
A.O
A.I
44
PON/P1_6
A.I
PON
A.I
I-PD
45
VDD1
-
+1.8V
-
-
46
P2_7/BXTAL
D.O
COL5
O_0/1
I-PU
47
P1_5/INT5/RDI/VDDE
D.O
N.C.
O_0
O-1
48
P1_4/INT4/TDOD
D.O
DCDC_REG_CS
O_0/1
I-PD
49
P1_3/INT3/SIO
D.I
ROW3
I_0/1
I-PD
50
P1_2/INT2/SK
D.I
ROW2
I_0/1
I-PU
51
P1_1/INT1/LE
D.I
ROW1
I_0/1
I-PU
52
P2_6/WTF_IN
D.O
KEY_LED
O_0/1
I-PU
53
P0_7/SPI_DI
D.O
EEPROM_WP
O_0/1
I-PU
54
P0_6/SPI_DO
D.O
LCD_SDA
O_0/1
I-PU
55
P0_5/SPI_CLK
D.O
LCD_SCL
O_0/1
I-PU
56
P0_4/SPI_EN
D.O
LCD_CD
O_0/1
I-PU
57
P0_3/SCL2
D.O
SCL
O_0/1
I-PU
58
P0_2/SDA2
D.I/O
SDA
I/O_0/1
I-PU
59
P0_1/URX
D.I
URX
I_0/1
I-PU
60
P0_0/UTX
D.O
UTX
O_0/1
I-PU
61
RSTn
D.O
RSTn
O_0/1
I-PU
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