KX-NT346RU (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 63

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63
KX-NT346RU/KX-NT346RU-B
90
DVDD1.8_90
-
Digital system power supply (+1.5V)
91
DGND91
-
Digital system ground
92
BIGEND
I
Endian selection
93
DIVCK/PB11
I
Not in use
Connecting 
to
GND
94
PCMIN/PB10
I
PCM data input
95
PCMCLK/PB9
O
PCM clock output
96
PCMSYNC1/PB8
O
PCM synchronous signal 1
97
PCMSYNC2/PB7
I
Not in use
Connecting 
to
GND
98
PCMOUT/PB6
O
PCM data output
99
XDACK/PB5
I
Not in use
Connecting 
to
GND
100
DSOD/PB4
O
Reset output for PHY1
101
DWR/PB3
O
Reset output for PHY2
102
DCK/PB2
I
Option detection
103
DSL/PB1
O
Reset output for option
104
DSID/PB0
I
Receive from option(RxRDY)
105
DBG15/PA15
O
Handset/Headset receive mute output
H:Mute 
ON,
L:Mute OFF
106
DBG14/PA14
O
Speaker receive mute output
H:Mute 
ON,
L:Mute OFF
107
DBG13/PA13
I
Not in use
Connecting 
to
GND
108
DVDD3.3_108
-
Digital system power supply (+3.3V)
109
DGND109
-
Digital system ground
110
AVDD3.3_110
-
Analog system power supply (+3.3V)
111
AGND111
-
Analog system ground
112
HSIN
I
Handset input
113
MICIN
I
Microphone input
114
VREF
O
Analog block reference voltage output
115
HSOUT
O
Handset/Headset output
116
SPOUT
O
Speaker output
117
AVDD3.3_117
-
Analog system power supply (+3.3V)
118
AGND118
-
Analog system ground
119
NC119
-
No internal connection
Connecting 
to
GND
120
DBG12/PA12
O
Mic switch output for Handset or Headset
L:Handset,
H:Headset
121
DBG11/PA11
O
Output for G722 switch
L:Normal,
H:G722
122
DBG10/PA10
I
Headset detection
H:Headset
detection
123
DBG9/PA9
O
Output for sidetone switch
124
DBG8/PA8
O
Output at error
125
NC125
-
No internal connection
Connecting 
to
GND
126
DVDD3.3_126
-
Digital system power supply (+3.3V)
127
DGND127
-
Digital system ground
128
DBG7/PA7
O
Output at error
129
DBG6/PA6
O
Output at error
130
DBG5/PA5
O
Output at error
131
DBG4/PA4
O
Chip select output for option
132
DBG3/PA3
O
Chip select output for Sub CPU(Self-labeling)
133
DBG2/PA2
O
Chip select output for Sub CPU
134
SPOUT_NS/PA1
O
Reset output fpr Sub CPU
135
HSOUT_NS/PA0
I
Input for debugging
136
SCK/PC15
O
SIO serial clock
137
SDI/PD0
I
SIO serial data input
138
SDO/PC14
O
SIO serial data output
139
IRQ3/PD3
I
Interrupt from PHY2
140
IRQ2/PD2
I
Interrupt from PHY1
141
IRQ1/PD1
I
DC-ALARM input
142
nCTS2/PC0
I
Input for debugging
143
nDSR2/PC1
I
Not in use
Connecting 
to
GND
144
PVDD1.8_144
-
PLL power supply (+1.5V)
145
PGND145
-
PLL ground
Pin No.
Terminal Name
I/O Setting
Contents of Control
Remark
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