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• IC Pin Function Description
MAIN BOARD IC901 M30622MEP-A26FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
O-LCDATA
2
O-LCDSCK
3
O-VOLUMELED
4
I-RMC
5
O-MP3DATA
6
I-MP3DATA
7
O-MP3CLK
8
BYTE
9
CNVSS
10
32KHz-IN
11
32KHz-OUT
12
I-RESET
13
16MHz-OUT
14
VSS
15
16MHz-IN
16
VCC
17
NMI
18
I-RDSCLK
19
I-SCOR
20
AC-CUT
21
NC
22
O-PLLCE
23
O-PLLDAT
24
NC
25
I-PLLDAT/I-STEREO
26
I-TUNE
27
O-PLLCLK
28
O-BKLIGHT
29
O-SCL
30
O-SDA
31
TXD
32
I-MP3ACK
33
I-MP3REQ
34
RTS
35
O-DATA
36
O-XLT
37
O-CLOCK
38
O-POWER
39
I-PROTECT
40
O-LCDRESET
41
I-HEADPHONE
42
O-FRONTRELAY
43
O-PB2
44
O-BIAS
45
O-MP3RST
46
O-LCDCD
47
I-MICS
48
O-MILP
49
O-MP3STBY
I/O
O
LCD DATA
O
Data output to the fluorescent indicator tube
O
LED (i-Bass/DEMO) control signal output
I
Remote control signal input from the remote sensor
O
MP3 DATA OUT
I
MP3 DATA IN
O
Clock output to the CD unit
I
Destination setting input terminal
I
Flash data signal input terminal
I
Oscillation circuit signal input for the real time clock
I
Oscillation circuit signal output for the real time clock
—
Reset signal input
—
Oscillation circuit signal output for the system main clock
—
Ground terminal
I
Oscillation circuit signal input for the system main clock
—
Power supply terminal (+3.3 V)
—
HIGH always
I
Clock signal input from the tuner
I
Sub code sync signal input from the CD unit
I
Power down detection signal input
—
Not used
O
Latch signal output to the tuner
O
Data output to the tuner
—
Not used
I
Pll data or stereo tuner detection signal input terminal
I
Tuner tuned status signal input from the tuner
O
Clock output to the tuner
O
LED (BACK LIGHT) control signal output
O
12C clock signal output
O
12C data signal output
—
Flash link data output terminal
I
Acknowledge signal input from the MP3 IC
I
Request signal input from the MP3 IC
O
Flash RTS signal output terminal
O
Data output to the CD unit
O
Control data latch signal output to the CD unit
O
Clock output to the CD unit
O
Main power control signal output
I
Voltage detection signal input
O
Clock signal output to the fluorescent indicator tube
I
Headphone signal input terminal
O
Front relay on/off detection signal output
O
Playback selection signal output for the tape deck
O
Bias control signal output to the tape deck
O
Reset signal output to the MP3 IC
O
Latch signal output to the fluorescent indicator tube
O
Clock output to the MP3 IC
O
Latch pulse signal output to the MP3 IC
O
Strobe signal output to the MP3 IC
CX-LDB30/LDB50
Description
45
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