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SYSTEM MICROCOMPUTER UPD703030GC011 (IC1 : X25)
pin
pin name
I/O
Description
truth table
Processing Operation
1
PLL CLK
I/O
Clock output to F/E
2
AFS
O
Noise detection time constant switching terminal
FM seek/during/AF search : L, receiving : H
3
TDF DET
I
TDF panel detection terminal
Panel detached : H, panel attached : L
4
IC2 SDA
I/O
Data input and output terminal with E-VOL
4
IC2 SDA
I/O
Data input and output terminal with CD mechanism
4
IC2 SDA
I/O
Data input and output terminal with E2PROM
5
IC2 SCL
I/O
Clock output to E-VOL
5
IC2 SCL
I/O
Clock output to CD mechanism
5
IC2 SCL
I/O
Clock output to E2PROM
6
VDD
-
7
VSS
-
8
-
O
Not used
9
BEEP
O
Beep output terminal
10
REMO
I
Remote control input
11
R QUAL
I
RDS decoder quality input terminal
11
-
O
Not used
With no RDS and destination is output L
12
R DATA
I
RDS decoder data input terminal
12
-
O
Not used
With no RDS and destination is output L
13
L CE
O
CE output to LCD driver
14
-
O
Not used
15
L INH
O
Reset output to LCD driver
Display light off, KEY reset : L Display light on,
KEY scan : H
16
DSI
O
DSI control terminal
DSI light on : H, Light off : L
17
-
O
Not used
18
TEST
-
19~21 -
O
Not used
22
MOSW
O
CD mechanism motor IC switch
e
Loading/Eject/Break : H
23
LO/EJ
I/O
CD mechanism Loading/Eject switch
e
Stop/Break : Hi-Z Loading : L Eject : H
24
M STOP
O
Stop request to CD mechanism
25
M RST
O
Reset output to CD mechanism
Usually : H, Reset : L
Mute terminal
L : MUTE OFF, H : MUTE ON
CD Down Switch detection terminal
H : chucking
MUTE request from CD mechanism
L : MUTE request
MUTE request from CD mechanism
L : MUTE request
Usually : H, Reset : L
Sub clock 32.765kHz
Sub clock 32.765kHz
Ceramic capacitor connected to the pair grounds
36
X1
I
Main clock 20MHz
37
VSS
-
38
VDD
-
39
CLKOUT
-
40
IC2 TYPE1
I
E-VOL setting switching terminal
41
IC2 TYPE0
I
E-VOL setting switching terminal
42
-
O
Not used
43
TYPE1
I
Destination switching terminal
r
44
TYPE0
I
Destination switching terminal
r
MICROCOMPUTER’S TERMINAL DESCRIPTION
KDC-M4524/G/Y/GY
www. xiaoyu163. com
QQ 376315150
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4
2
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TEL 13942296513
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299