KX-NT400RU - Panasonic PBX Service Manual (repair manual). Page 86

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86
KX-NT400RU
50
VDDATX
-
3.3V analog VDD 
51
VDDARX
-
3.3V analog VDD 
52
RXM2
I/O
Physical receive or transmit signal(-) 
53
RXP2
I/O
Physical receive or transmit signal(+) 
54
AGND54
-
Analog ground
55
TXM2
I/O
Physical transmit or receive signal(-)  
56
TXP2
I/O
Physical transmit or receive signal(+)
57
VDDA57
-
1.2V analog VDD 
58
AGND58
-
Analog ground
59
TEST1
I
Factory test pin
No connect 
60
TEST2
I
Factory test pin
No connect 
61
ISET
O
physical output current set  
62
AGND62
-
Analog ground
63
VDDAP
-
MII Carrier Sense Output 
64
AGND64
-
Analog ground
65
X1
I
25MHz crystal clock connection 
66
X2
O
25MHz crystal clock connection 
67
RST_N
I
Hardware reset pin 
68
UNUSED68
I
Unused pin
External pullup
69
UNUSED69
I
Unused pin
External pullup
70
LEDSEL0
I
LED display mode select
External pulldown
71
SMTXEN
I
MII transmit enable 
72
SMTXD3
I
MII transmit data bit3 
73
SMTXD2
I
MII transmit data bit2 
74
SMTXD1
I
MII transmit data bit1 
75
SMTXD0
I
MII transmit data bit0 
76
SMTXER
I
MII transmit error 
77
SMTXC/REFCLK
O
MII transmit clock 
78
DGND78
-
Digital ground
79
VDDIO79
-
3.3V digital VDD 
80
SMRXC
O
MII Receive clock 
81
SMRXDV
O
MII Receive Data valid 
82
SMRXD3
O
MII Receive Data bit3
83
SMRXD2
O
MII Receive Data bit2
84
SMRXD1
O
MII Receive Data bit1 
85
SMRXD0
O
MII Receive Data bit0
86
SCOL
O
MII collision detect 
87
SCRS
O
MII carrier sense 
88
SCONF1
I
MII configuration
External pulldown
89
SCONF0
I
MII configuration
External pullup
90
DGND90
-
Digital ground
91
VDDC91
-
1.2V digital VDD 
92
UNUSED92
I
Unused pin
External pulldown
93
UNUSED93
I
Unused pin
External pulldown
94
MDC
I
MII management interface clock 
95
MDIO
I/O
MII management interface data 
96
SPIQ
O
SPI data output
97
SCL
I
SPI clock input
98
SDA
I
SPI data input
99
SPIS_N
I
SPI chip select
100
PS1
I
Serial bus configuration
External pullup
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