Advertisement
UX-L40/UX-L30
MN101C38CEK1 (IC931) : Micro controller
1. Pin layout
51
50
~
26
25
2. Pin Function
Pin No.
Symbol
I/O
1~4
-
COM3~0
5~7
VLC3~1
-
8
VDD
-
9
OSC2
O
10
OSC1
I
11
VSS
-
12
NC
I
13
NC
O
14
MMOD
I
15
VREF-
-
16
SAFETY0
I
17
SAFETY1
I
18
TAPE0
I
19
TAPE1
I
20, 21
KEY0, 1
I
22
DOOR_RST
I
23
CDSAFETY
I
24
VREF+
-
25
SDATA
I/O
26
NC
O
27
SCK
O
28
NC
O
29
QRIN
I
30
SQCK
O
31
F_CD
O
32
/RST
I/O
33
MPX
I
34
BCTL
O
35
VOLCE
O
36
NC
O
37
PROTR
I
38
REM
I
39
RDSCK
I
40
BLKCK
I
41
FLAG
I
42
STAT
I
43
SMUTE
O
44
SPKMUTE
O
45
AHB
O
1-32
~
75
76
~
100
~
1
Function
LCD Bias co mmon
LCD Bias voltage
5V
Main oscillation 12MHz
Main oscillation 12MHz
Ground
No use. Fixed to VSS.
No use. Open
Fixed to ground
Ground
Irregular voltage detection 0
Irregular voltage detection 1
Tape Switch 0
Tape Switch 1
Unit KEY INPUT
Rest/close switch detect port
CD safety voltage detect port
5V
Serial data (Tuner/ PLL IC)
No use. OUTPUT LOW
Serial clock (Tuner/ PLL IC)
No use. OUTPUT LOW
Q-code data input port
Q-code serial clock
CD Function ("H"= CD)
RESET
FM stereo detection ( 'L'= stereo)
During Back up set H, other case L.
This back up means plug out.
volume chip enable
No use. OUTPUT LOW
Protector detect. When detect
PROTR=L, set SPKMUTE to 'L'.
Remoto control input
RDS clock
Block clock input port
Error Correction Count Input
CD status input port
MUTE ON=L
Speaker mute.When detect
PROTR=L, set SPKMUTE to 'L'.
Active Hyper Bass On/Off
AHB OFF=H, AHB1, 2=L
Pin No.
Symbol
I/O Function
LCD DIM control. DIMMER ON =L
46
DIMCTL
O
Power standby LED control
47
LEDCTL
O
STANDBY = L, POWER ON = H
48
SURR
O
Surround IC control, H:=Surroud on
No use. Open
49
NC
O
SEGMENT OUTPUT
50
SEG12
O
51
MDATA
O
CD data input port
52
MCLK
O
CD data clock
CD reset
53
XRST
O
CD command ready signal
54
MLD
O
55
STTA
O
Tape IC strobe
56
REEL
Reel pulse input
I
Volume plus
57
VOL+
I
58
VOL-
I
Volume minus
59
PERIOD
O
Tuner pLL strobe
Tuner function ('H'=Tuner)
60
F_TU
O
Door close motor control output
61
CLOSE
O
62
OPEN
O
Door open motor control output
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
Advertisement
