– 29 –
Pin No.
Pin name
I/O
Description
1
MD
O
MD function output.
2
RADIO/LINE
O
Radio/LINE function output.
3
ACCHK
I
AC power supply detection input. L : Supplied H : Not supplied
4
NC
–
Not used (OPEN).
5
NC
–
Not used (OPEN).
6
NC
–
Not used (OPEN).
7
RDS - DATA
I
RDS serial data input.
8
NC
–
Not used (OPEN).
9
RDS - CLK
I
RDS serial clock input.
10
CD - TURN
I
CD ON/OFF detection input.
11
NC
–
Not used (OPEN).
12
CD - OPEN
O
CD tray control output. H : OPEN
13
CD - CLOSE
O
CD tray control output. H : CLOSE
14
NC
–
Not used (OPEN).
15
NC
–
Not used (OPEN).
16
NC
–
Not used (OPEN).
17
MD - H
O
D/A converter down signal output (MD play).
18
REC - H
O
D/A converter down signal output (MD recording).
19
MD - RST
O
Reset signal output for MD system control.
20
MD - SCTS
O
UART send request output to MD.
21
MD - SRTS
I
UART send request input from MD.
22
MD - PDOWN
O
Notification of power cutoff to MD.
23
D/LCON
O
Back light ON/OFF control output.
24
LCD - RST
O
Reset signal output to LCD.
25
LCD - CE
O
Chip enable output to LCD.
26
LCD - A0
O
Address output to LCD.
27
LED - MD
O
MD LED drive output.
28
LED - RADIO
O
BAND LED drive output.
29
LED - CD
O
CD LED drive output.
30
NC
–
Not used (OPEN).
31
RADIO POWER
O
Radio power supply ON/OFF control output.
32
CD POWER
O
CD power supply ON/OFF control output.
33
NC
–
Not used (OPEN).
34
NC
–
Not used (OPEN).
35
NC
–
Not used (OPEN).
36
NC
–
Not used (OPEN).
37
NC
–
Not used (OPEN).
38
NC
–
Not used (OPEN).
39
TU - SFT
O
System clock shift output.
40
RST
I
System reset terminal.
41
VSS
–
Ground.
42
XTAL
I
System clock (8MHz) oscillation input.
43
EXTAL
O
System clock (8MHz) oscillation output.
44
SELECT - GND
O
Destination select terminal.
45
HP - SW
I
Headphone detection input.
46
LCD - DATA
O
Serial data output to LCD.
47
LCD - CLK
O
Serial clock output to LCD.
48
CD - DOOR
I
CD tray Open/Close detection input.
49
JOG - A
I
Jog dial rotation detection input (A).
50
JOG - B
I
Jog dial rotation detection input (B).
MAIN BOARD (2/2) IC405 SYSTEM CONTROL (CXP740096-026Q)