13
RXD-M32MD
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
1
CD_PROTECTION
I
Detection port for CD protection.
H = NORMAL
L = PROTECTION ON
2
CD_OPEN_SW
I
CD open detection switch input.
H = OFF
L = ON
3
CD_OPEN_M
O
CD tray motor control output (open).
H = OFF
L = ON
4
CD_CLOSE_M
O
CD tray motor control output (close).
H = OFF
L = ON
5
CD_CLOSE_SW
I
CD close detection switch input.
H = ON
L = OFF
6
RDS_DATA
I
RDS data input.
7
CE
I
Power failure input port.
H = AC ON
L = AC OFF
8
BYTE
I
GND.
9
CNVSS
I
GND.
10
XCIN
I
Timer clock input (32.768kHz).
11
XCOUT
O
Timer clock output (32.768kHz).
12
RESET
I
Reset signal input for microprocessor.
H = NORMAL
L = RESET
13
XOUT
O
Main clock oscillator(10MHz).
14
VSS
I
GND.
15
XIN
I
Main clock oscillator(10MHz).
16
VCC(B.U)
I
Power 5.0v).
17
NMI
I
Connected to VCC.
18
REMOCON
I
Remote control signal input.
19
RDS_CLK
I
RDS clock input.
20
SCOR
I
Sub code synchronized signal input.
21
SCLK
O
CD sense data read out clock.
22
SENSE
I
CD sense input.
23
CD_CLK
O
CD DSP clock output.
24
XLAT
O
CD DSP latch output.
L = LATCH
25
CD_DATA
O
CD DSP data output.
26
SYSM
O
CD DSP system mute output.
27
CDRST
O
CD DSP reset signal output.
28
SQCK
O
CD sub code clock output.
29
SUBQ
I
CD sub code input.
30
NC
O
Unused.
31
K_DATA
O
MD data output (MD version only).
32
MD_DATA
I
MD data input (MD version only).
33
MD_SCK
O
MD clock output (MD version only).
O
Control port of standby/timer LED(red).
L = ON
O
Data output to LCD driver IC.
O
Unused.
O
Clock output to LCD driver IC.
O
Control port of standby/timer LED (green).
L = ON
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.
H = CrO2
L = Normal
45
PACK_SW
I
Deck pack switch input.
H = OFF
L = ON
46
REC_F_SW
I
Deck forward rec switch input.
H = OFF
L = ON
47,48
NC
-
Unused.
49
REC_R_SW
I
Deck reverse rec switch input.
H = OFF
L = ON
50
NORMAL_BIAS
O
Deck bias (Normal/CrO2) change-over.
5-3 Pin Description of Main Microprocessor
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