17
CDX-MP70
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
56
MD1
—
CPU operation mode setting
57
OSC2
—
Not used. (Open)
58
OSC1
—
Connecting to ground in this set.
59
RSTX
I
CPU reset signal
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
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
69
FL W
O
Flash write control signal
70
CD ON
O
CD servo power control signal
71
CDM ON
O
Not used. (Open)
72
DEC INT
I
DEC interrupt signal
73
(NCO)
O
Not used. (Open)
74
LINK OFF
O
Link off signal
75
EJECT KEY
I
Eject key signal
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
79
(NCO)
O
Not used. (Open)
80
SDA
I/O
I2C interface data input/output
81
SCL
O
I2C interface clock signal
82, 83
(NCO)
O
Not used. (Open)
84
SQSO
I
Sub-code Q data input
85
SQCK
O
Sub-code Q read-out clock signal
86
LED DAT
O
LED data output
87
LED CLK
O
LED clock signal
88
LED LAT
O
LED latch signal
89, 90
(NCO)
O
Not used. (Open)
91
BUS ON
I
Bus ON signal
92
BU CHK
I
Back up voltage detect signal
93
(NCO)
O
Not used. (Open)
94
(NCO)
O
Not used. (Open)
95, 96
(NCO)
O
Not used. (Open)
97
TEXT SEL
I
CD text function select
98
ESP SEL
I
ESP function select
99
CF SEL
I
Custom file function select
100
DOUT SEL
I
Digital-out select
