KDC-MP632U
KDC-W6534U/UY/X590/X7533U
9
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
MECHANISM
µ
-COM: IC1 (X32-: CD PLAYER UNIT)
Pin No.
Pin Name
I/O
Application
Processing / Operation / Description
1~5
NC
-
Not used
Opened output L fixed
6
BYTE
I
External data bus SW input
Connects to GND
7
CNVSS
I
Processor mode SW
L: Single chip mode
H: Microprocessor mode or flash ROM writing
8
MUTE
O
Audio mute control
L: Mute ON, H: Mute OFF
9
NC
-
Not used
Opened output L fixed
10
RESET
I
Reset detection
L: Reset (Flash ROM writing), H: Normal
11
XOUT
O
Main clock output
Connects to resonator
12
VSS
-
Power supply input
Connects to GND
13
XIN
I
Main clock input
Connects to resonator
14
VCC1
-
Power supply input
Connects to BU3.3V
15
NMI
I
NMI interruption input
Input Hi (Pull-up) fixed
16
MSTOP
I
STANDBY comeback interrupption
L: Stop, H: Stop cancelled (Hi edge)
17
NC
-
Not used
Opened output L fixed
18
DSP INT
I
DSP interruption signal input
H: Interruption (Hi edge)
19~22
NC
-
Not used
Opened output L fixed
23
E2P SCL
I/O
E2P I2C clock output
Series resistors and E2PROM are not built when
ROM collection is not used.
24
E2P SDA
I/O
E2P I2C data input and output
Series resistors and E2PROM are not built when
ROM collection is not used.
25,26
NC
-
Not used
Opened output L fixed
27
SCL
I
System
µ
-com I2C clock input
28
SDA
I/O
System
µ
-com I2C data input and output
29
DSP TXD
O
Data output for DSP serial data
Flash ROM writing: TXD (Pull-up)
30
DSP RXD
I
Data input for DSP serial data
Flash ROM writing: RXD
31
DSP CLK
O
Clock output for DSP serial data
Flash ROM writing: SCLK(Pull-up)
32
DSP STB(BUSY)
O
DSP data strove signal output
Flash ROM writing: BUSY
33
CS SDATA
O
Data output for decoder serial data
Data input for decoder serial data
Clock output for decoder serial data
Not used
Opened output L fixed
Not used (Flash ROM: EPM)
Opened output L fixed
D3.3V POWER ON control
H: POWER ON, L: POWER OFF
A5.0V POWER ON control
H: POWER ON, L: POWER OFF
IC15 series 3.3V POWER ON control
H: POWER ON, L: POWER OFF
IC15 series 1.8V POWER ON control
H: POWER ON, L: POWER OFF
Not used (Flash ROM: CE)
Opened output L fixed
45
DRV MUTE
O
Driver mute
L: Stop, H: Mute OFF
46,47
NC
-
Not used
Opened output L fixed
48
ZERO M
I
0-bit mute detection
H: Mute ON, L: Mute OFF
(No distinction of Lch/Rch)
49
DE-EMPHASIS
O
DAC de-emphasis control
H: De-emphasis ON, L: De-emphasis OFF
50,51
NC
-
Not used
Opened output L fixed
52
LIM SW
I
Laser pick-up inner circumference detection
H: Inner circumference
SW signal input
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