31
CDX-GT250M
Pin No.
Pin Name
I/O
Pin Description
52
KEYACK
I
Key acknowledgment detect signal input
53
TU ATTIN
I
Not used in this set. (Connect to VSS.)
54
BUIN
I
Back-up power supply detect signal input
55
NCO
O
Not used. (Open)
56
DAVN
I
Not used in this set. (Connect to VSS.)
57
NCO
O
Not used. (Open)
58
UNISI
I
SONY bus data signal input
59
UNISO
O
SONY bus data signal output
60
UNISCK
O
SONY bus clock signal output
61
611 SEL
I
Mechanism deck select signal input
62
WMA
I
WMA select signal input
63
NCO
O
Not used. (Open)
64
SIRCS
I
Remote control signal input
65 to 67
NCO
O
Not used. (Open)
68
FLASH W
I
Not used in this set. (Connect to VDD.)
69, 70
NCO
O
Not used. (Open)
71
RC IN1
I
Not used in this set. (Connect to VDD.)
72
ACC IN
I
Accessory power supply detect signal input
73
TESTIN
I
Test mode detect signal input
74
TEL ATT
I
Not used in this set. (Connect to VSS.)
75
NCO
O
Not used. (Open)
76
XKEYON
O
A/D converter power supply control signal output
77
RESET
I
CPU reset signal input
78
NCO
O
Not used. (Open)
79
XOUT
O
Sub-clock output (32.768 kHz)
80
XIN
I
Sub-clock input (32.768 kHz)
81
VSS1
—
Ground pin
82
OSCIN
I
Main-clock input (18.432 MHz)
83
OSCOUT
O
Main-clock output (18.432 MHz)
84
VCC3
—
Power supply pin (+3.3 V)
85
DEMOSEL
I
DEMO select signal input
86
ATT
O
Audio mute control signal output
87
BUSON
O
Bus on signal output
88
SYSRST
O
System reset signal output
O
Eject OK signal output
O
Not used. (Open)
I
CD zero cross mute detect signal input
O
Not used. (Open)
I
CD mechanism power control request signal input
I
CD mechanism deck power control request signal input
O
Not used. (Open)
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