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RXD-M32V
4-2 Key Matrix
INPUT
KEY1
VOLTAGE(V)
Pin90
0.00~0.23
TUNER/BAND
0.24~0.67
STOP
0.68~1.12
TAPE REC
1.13~1.60
F PLAY
1.61~2.02
TAPE O.T.E.
2.03~2.47
R PLAY
4-3 Pin Description of Main Microprocessor
Pin No.
Pin Name
1
CD_PROTECTION
2
CD_OPEN_SW
3
CD_OPEN_M
4
CD_CLOSE_M
5
CD_CLOSE_SW
6
RDS_DATA
7
CE
8
BYTE
9
CNVSS
10
XCIN
11
XCOUT
12
RESET
13
XOUT
14
VSS
15
XIN
16
VCC(B.U)
17
NMI
18
REMOCON
19
MP STB
20
MP STB
21
SCLK
22
SENSE
23
CD_CLK
24
XLAT
25
CD_DATA
26
SYSM
27
CDRST
28
MP CLK
29
MP DIN
30
MP DO
31
K_DATA
32
MD_DATA
33
MD_SCK
34
LED2
35
LCD_DATA
36
NC
37
LCD_CLK
38
LED1
39
ENC1
40
ENC2
41
DECK_CMP
42
DECK_SOL
43
PLAY_SW
44
CrO2_SW
45
PACK_SW
CIRCUIT DESCRIPTION
KEY2
Pin91
SET/ DEMO
MENU
SKIP UP
SKIP DOWN
SOUND
AUX
I/O
I
Detection port for CD protection.
I
CD open detection switch input.
O
CD tray motor control output (open).
O
CD tray motor control output (close).
I
CD close detection switch input.
-
Unused.
I
Power failure input port.
I
GND.
I
GND.
I
Timer clock input 32.768kHz).
O
Timer clock output 32.768kHz).
I
Reset signal input for microprocessor.
O
Main clock oscillator(10MHz).
I
GND.
I
Main clock oscillator(10MHz).
I
Power supply(+5.0v).
I
Connected to VCC.
I
Remote control signal input.
I
Main CPU(X32,IC5) interface strobe input.
I
Main CPU(X32,IC5) interface strobe input.
-
Unused.
-
Unused.
-
Unused.
-
Unused.
-
Unused.
-
Unused.
-
Unused.
I
Clock input from main CPU(X32,IC5).
I
Data input from main CPU(X32,IC5).
O
Data output to main CPU(X32,IC5).
-
Unused.
-
Unused.
-
Unused.
O
Control port of standby/timer LED(red).
O
Data output to LCD driver IC.
-
Unused.
O
Clock output to LCD driver IC.
O
Control port of standby/timer LED (yellow).
I
Rotary encoder input (up).
I
Rotary encoder input (down).
O
Deck capstan motor control.
O
Deck solenoid control.
I
Deck play switch input.
I
Deck CrO2 detection switch input.
I
Deck pack switch input.
INPUT
KEY1
VOLTAGE(V)
Pin90
2.48~2.92
TAPE EQ
2.93~3.37
CD PLAY
3.38~3.82
CD OPEN/CLOSE
3.83~4.27
POWER
4.28~4.74
TAPE OPEN/CLOSE
4.75~5.00
KEY OFF
Description
H = NORMAL
L = PROTECTION ON
H = OFF
H = OFF
H = ON
H = ON
H = AC ON
H = NORMAL
L = ON
L = ON
H = OFF
H = CrO2
H = OFF
Vref=5V
KEY2
Pin91
-
-
-
-
-
KEY OFF
L = ON
L = ON
L = OFF
L = OFF
L = AC OFF
L = RESET
L = ON
L = Normal
L = ON
6
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