CX-402A/402R/402W
3
MICROCOMPUTER'S TERMINAL DESCRIPTION
PORT
No.
PORT NAME
I/O
FUNCTION
OPERATING CONDITION
1
-
-
-
2
CD CLK
O
CD clock.
3
-
-
-
4
EV DATA
O
E-volume data.
5
EV CLK
O
E-volume clock.
6
VDD
-
VDD.
7
GND
-
GND.
8
P STBY
O
Power amplifier stand-by control.
"L" : Power amplifier does not work.
"H" : Power amplifier works.
9
BEEP
O
Beep.
10
P MUTE
O
Power amplifier mute control.
"L" : Mute on.
"H" : Mute off.
11
-
-
-
12
LCD DI
I
LCD driver data.
13
LCD DO
O
LCD driver data.
14
LCD CLK
O
LCD driver clock.
15
LCD CE
O
LCD driver chip enable.
16,17
-
-
-
18
IC/VDD
-
Writing voltage.
19
H-MUTE
I
Handle mute.
"L" : Mute on.
"H" : Mute off.
20
ACC DET
I
ACC detection.
"L" : ACC on.
"H" : ACC off.
21
BU DET
I
Back-up detection.
"L" : Back-up on.
"H" : Back-up off.
22
-
-
-
23
BUS DI
I
IE BUS data.
24
BUS DO
O
IE BUS data.
25
SYS ON
O
System control.
"H" : ACC on.
"L" : ACC off.
26
P ANT
O
Power antenna control.
27
P-ON D
O
Power-on control (Digital).
"L" : ACC on.
"H" : ACC off.
28
P-ON A
O
Power-on control (Analogue).
"H" : ACC/POWER/SVR on.
"L" : ACC/POWER off.
29,30
-
-
-
31
RESET
-
System reset.
"L" : Reset.
32
XT1
-
Sub system clock.
33
XT2
-
Sub system clock.
34
REGC
-
35
X2
-
Main system clock.
36
X1
-
Main system clock.
37
GND
-
GND.
38
VDD
-
VDD.
39-46
-
-
-
47
ILL DET
I
"SMALL" detection.
"L" : "SMALL" detection.
48
LCD BL
O
LCD back light control.
"H" : ACC/POWER on.
"L" : Other.
49
DIMMER
O
Dimmer control.
"H" : Dimmer on.
"L" : Base.
50
KEY ILLUMI
O
Key illumination control.
"H" : Key illumination turns on.
The indicator turns on and off every 2
51
LED IND
O
LED indicator.
seconds during ACC off.
The indicator turns on during disc in.
52
EJECT
I
Disc eject key.
"L" : Disc eject.
"H" : Other.
53
ENC DOWN
I
Encode down.
54
ENC UP
I
Encode up.
55
VDD
-
VDD.
(X14-) IC11 : µ-COM
