Kenwood KDC-MP5033U Service Manual page 9

MICROCOMPUTER'S TERMINAL DESCRIPTION
MECHANISM µ-COM: IC1 (X32-: CD PLAYER UNIT)
Pin No. Pin Name I/O
1~5 NC -
6 BYTE I
7 CNVSS I
8 MUTE O
9 NC -
10 RESET I
11 XOUT O
12 VSS -
13 XIN I
14 VCC1 -
15 NMI I
16 MSTOP I
17 NC -
18 DSP INT I
19~22 NC -
23 E2P SCL I/O
24 E2P SDA I/O
25,26 NC -
27 SCL I
28 SDA I/O
29 DSP TXD O
30 DSP RXD I
31 DSP CLK O
32 DSP STB (BUSY) O
33 CS SDATA O
34 CS BDATA I
35 CS CLK O
36~38 NC -
39 EPM -
40 PON D3.3 O
41 PON A5 O
42 PON CS1 O
43 PON CS2 O
44 CE -
45 DRV MUTE O
46,47 NC -
48 ZERO M I
49 DE-EMPHASIS O
50,51 NC -
52 LIM SW I
Application
Not used
External data bus SW input
Processor mode SW
Audio mute control
Not used
Reset detection
Main clock output
Power supply input
Main clock input
Power supply input
NMI interruption input
STANDBY comeback interrupption
Not used
DSP interruption signal input
Not used
E2P I2C clock output
E2P I2C data input and output
Not used
System µ-com I2C clock input
System µ-com I2C data input and output
Data output for DSP serial data
Data input for DSP serial data
Clock output for DSP serial data
DSP data strove signal output
Data output for decoder serial data
Data input for decoder serial data
Clock output for decoder serial data
Not used
Not used (Flash ROM: EPM)
D3.3V POWER ON control
A5.0V POWER ON control
IC15 series 3.3V POWER ON control
IC15 series 1.8V POWER ON control
Not used (Flash ROM: CE)
Driver mute
Not used
0-bit mute detection
DAC de-emphasis control
Not used
Laser pick-up inner circumference detection
SW signal input
KDC-MP5033U/MP532U
KDC-W534UA/UAY/UG/UGY/W5534U/UY
Processing / Operation / Description
Opened output L fixed
Connects to GND
L: Single chip mode
H: Microprocessor mode or flash ROM writing
L: Mute ON, H: Mute OFF
Opened output L fixed
L: Reset (Flash ROM writing), H: Normal
Connects to resonator
Connects to GND
Connects to resonator
Connects to BU3.3V
Input Hi (Pull-up) fixed
L: Stop, H: Stop cancelled (Hi edge)
Opened output L fixed
H: Interruption (Hi edge)
Opened output L fixed
Series resistors and E2PROM are not built when
ROM collection is not used.
Series resistors and E2PROM are not built when
ROM collection is not used.
Opened output L fixed
Flash ROM writing: TXD (Pull-up)
Flash ROM writing: RXD
Flash ROM writing: SCLK (Pull-up)
Flash ROM writing: BUSY
Opened output L fixed
Opened output L fixed
H: POWER ON, L: POWER OFF
H: POWER ON, L: POWER OFF
H: POWER ON, L: POWER OFF
H: POWER ON, L: POWER OFF
Opened output L fixed
L: Stop, H: Mute OFF
Opened output L fixed
H: Mute ON, L: Mute OFF
(No distinction of Lch/Rch)
H: De-emphasis ON, L: De-emphasis OFF
Opened output L fixed
H: Inner circumference
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