Read Sony CDX-MP80 Service Manual online
17
CDX-MP80
Pin No.
Pin Name
I/O
Pin Description
53
AVREF
—
Reference voltage pin (+3.3 V) for A/D converter
54
AVCC
—
Power supply pin (+3.3 V) for A/D converter
55
MD0
—
CPU operation mode setting Connecting to VCC (+3.3 V) in this set.
56
MD1
—
CPU operation mode setting Connecting to VCC (+3.3 V) in this set.
57
OSC2
—
Not used. (Open)
58
OSC1
—
Connecting to ground in this set.
59
RSTX
I
CPU reset signal input
60
NMI
O
Connecting to VCC (+3.3 V) in this set.
61
STBY
—
Connecting to VCC (+3.3 V) in this set.
62
VCC
—
Power supply pin (+3.3 V)
63
XTAL
—
Crystal oscillator (12.288 MHz)
64
VSS
—
Ground pin
65
XTXAL
—
Crystal oscillator (12.288 MHz)
66
F WE
—
Flash write enable
67
MD2
—
CPU operation mode setting
68
FL BOOT
I
Flash write-in mode select signal input
69
FL W
O
Flash write control signal output
70
CD ON
O
CD servo power control signal output
71
CDM ON
O
Not used. (Open)
72
DEC INT
I
DEC interrupt signal input
73
NC
O
Not used. (Open)
74
LINK OFF
O
Link off signal output
75
EJECT KEY
I
Eject key signal input
76
UNI SO
O
SONY bus serial data output
77
UNI SI
I
SONY bus serial data input
78
UNI CK
I
SONY bus clock signal input
79
NC
O
Not used. (Open)
80
SDA
I/O
I2C interface data input/output
81
SCL
O
I2C interface clock signal output
82, 83
NC
O
Not used. (Open)
84
SQSO
I
Sub-code Q data input
85
SQCK
O
Sub-code Q read-out clock signal output
86
LED DAT
O
LED data output
87
LED CLK
O
LED clock signal output
88
LED LAT
O
LED latch signal output
89, 90
NC
O
Not used. (Open)
91
BUS ON
I
Bus ON signal input
92
BU CHK
I
Back up voltage detect signal input
93
NC
O
Not used. (Open)
94
NC
O
Not used.
95, 96
NC
O
Not used. (Open)
97
TEXT SEL
I
CD text function select signal input
98
ESP SEL
I
ESP function select signal input
99
CF SEL
I
Custom file function select signal input
100
DOUT SEL
I
Digital-out select signal input
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