Read Panasonic KX-NT400RU Service Manual online
78
KX-NT400RU
38
nCS0
O
External memory chip select 0
39
nCS1/PD4
I
Not in use
Connecting to GND
40
DQM3
O
SDRAM byte mask 3
41
DQM2
O
SDRAM byte mask 2
42
nDRCS1
O
SDRAM chip select 1
43
nDRCS0
O
SDRAM chip select 0
44
nRAS
O
Row address strobe
45
nCAS
O
Column address strobe
46
DRCLK
O
SDRAM clock
47
DRWE
O
SDRAM write write
48
DQM1
O
SDRAM byte mask 1
49
DQM0
O
SDRAM byte mask 0
50
M1_TXEN
O
MAC1 transmit enable
51
M1_TXCLK
I
MAC1 transmit clock
52
M1_TXD3
O
MAC1 transmit data
53
M1_TXD2
O
MAC1 transmit data
54
DVDD1.8_54
-
Digital system power supply (+1.5V)
55
DGND55
-
Digital system ground
56
M1_TXD1
O
MAC1 transmit data
57
M1_TXD0
O
MAC1 transmit data
58
NC58
-
No internal connection
Connecting to GND
59
M1_RXCLK
I
MAC1 receive clock
60
M1_RXDV
I
MAC1 receive data valid
61
M1_RXER
I
MAC1 receive data error
62
M1_RXD3
I
MAC1 receive data
63
M1_RXD2
I
MAC1 receive data
64
M1_RXD1
I
MAC1 receive data
65
M1_RXD0
I
MAC1 receive data
66
M1_CRS
I
MAC1 carrier sense
67
M1_COL
I
MAC1 collision detection
68
M1_MDC
O
MAC1 MII control clock
69
M1_MDIO
I/O
MAC1 MII control data
70
NC70
-
No internal connection
Connecting to GND
71
M2_TXEN
O
MAC2 transmit enable
72
DVDD3.3_72
-
Digital system power supply (+3.3V)
73
DGND73
-
Digital system ground
74
M2_TXCLK
I
MAC2 transmit clock
75
M2_TXD3
O
MAC2 transmit data
76
M2_TXD2
O
MAC2 transmit data
77
M2_TXD1
O
MAC2 transmit data
78
M2_TXD0
O
MAC2 transmit data
79
M2_RXCLK
I
MAC2 receive clock
80
M2_RXDV
I
MAC2 receive data valid
81
M2_RXER
I
MAC2 receive data error
82
M2_RXD3
I
MAC2 receive data
83
M2_RXD2
I
MAC2 receive data
84
M2_RXD1
I
MAC2 receive data
85
M2_RXD0
I
MAC2 receive data
86
M2_CRS
I
MAC2 carrier sense
87
M2_COL
I
MAC2 collision detection
88
M2_MDC
O
MAC2 MII control clock
89
M2_MDIO
I/O
MAC2 MII control data
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
O
PCM synchronous signal 2
98
PCMOUT/PB6
O
PCM data output
99
XDACK/PB5
I
Not in use
Connecting to GND
100
DSOD/PB4
O
Status output for IC101
101
DWR/PB3
O
Reset output for IC5
102
DCK/PB2
O
Not in use
103
DSL/PB1
O
Reset output for IC101
104
DSID/PB0
O
Not in use
105
DBG15/PA15
O
Handset/Headset receive mute output
H:Mute ON, L:Mute OFF
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