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UX-L40R/UX-L30R
MN101C38CEK1 (IC931) : Micro controller
1. Pin layout
51
~
50
~
26
25
~
2. Pin Function
Pin No.
Symbol
I/O
LCD Bias co mmon
1~4
COM3~0
-
LCD Bias voltage
5~7
VLC3~1
-
5V
8
VDD
-
Main oscillation 12MHz
9
OSC2
O
Main oscillation 12MHz
10
OSC1
I
Ground
11
VSS
-
No use. Fixed to VSS.
12
I
NC
No use. Open
13
NC
O
Fixed to ground
14
MMOD
I
Ground
15
VREF-
-
Irregular voltage detection 0
16
SAFETY0
I
Irregular voltage detection 1
17
SAFETY1
I
Tape Switch 0
18
TAPE0
I
Tape Switch 1
19
TAPE1
I
Unit KEY INPUT
20, 21
KEY0, 1
I
Rest/close switch detect port
22
DOOR_RST
I
CD safety voltage detect port
23
CDSAFETY
I
5V
24
VREF+
-
Serial data (Tuner/ PLL IC)
25
SDATA
I/O
No use. OUTPUT LOW
26
NC
O
Serial clock (Tuner/ PLL IC)
27
SCK
O
No use. OUTPUT LOW
28
NC
O
Q-code data input port
29
QRIN
I
Q-code serial clock
30
SQCK
O
CD Function ("H"= CD)
31
F_CD
O
RESET
32
/RST
I/O
FM stereo detection ( 'L'= stereo)
33
MPX
I
34
BCTL
O
During Back up set H, other case L.
This back up means plug out.
35
VOLCE
O
volume chip enable
36
NC
O
No use. OUTPUT LOW
37
PROTR
I
Protector detect. When detect
PROTR=L, set SPKMUTE to 'L'.
38
REM
I
Remoto control input
39
RDSCK
I
RDS clock
40
BLKCK
I
Block clock input port
41
FLAG
I
Error Correction Count Input
42
STAT
I
CD status input port
43
SMUTE
O
MUTE ON=L
44
SPKMUTE
O
Speaker mute.When detect
PROTR=L, set SPKMUTE to 'L'.
45
AHB
O
Active Hyper Bass On/Off
AHB OFF=H, AHB1, 2=L
1-42
75
76
~
100
1
Function
Pin No.
Symbol
I/O Function
LCD DIM control. DIMMER ON =L
46
DIMCTL
O
47
LEDCTL
O
Power standby LED control
STANDBY = L, POWER ON = H
Surround IC control, H:=Surroud on
48
SURR
O
49
NC
O
No use. Open
SEGMENT OUTPUT
50
SEG12
O
51
MDATA
CD data input port
O
52
MCLK
O
CD data clock
CD reset
53
XRST
O
54
MLD
CD command ready signal
O
55
STTA
O
Tape IC strobe
Reel pulse input
56
REEL
I
57
VOL+
I
Volume plus
58
VOL-
I
Volume minus
Tuner pLL strobe
59
PERIOD
O
60
F_TU
O
Tuner function ('H'=Tuner)
61
CLOSE
O
Door close motor control output
Door open motor control output
62
OPEN
O
63
P_OUT
O
Power on/off ('H'=Power ON)
64
BUP
I
Back up power detect. When detect 'H',
goto backup mode (STOP mode).
65
BTLMUTE
O
BTL mute control port. MUTE ON =L
During non CD play , MUTE ON.
66
NC
O
No use. OUTPUT LOW
67~88
SEG13~34
O
SEGMENT OUTPUT
89~100
SEG0~11
O
SEGMENT OUTPUT
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