9
KDC-MP5033U/MP532U
KDC-W534UA/UAY/UG/UGY/W5534U/UY
MICROCOMPUTER’STERMINAL 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
6BYTE I External data bus SW input Connects to GND
7CNVSS I Processor mode SW L: Single chip mode
H: Microprocessor mode or flash ROM writing
8MUTE O Audio mute control L: Mute ON, H: Mute OFF
9NC-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)
ODSP data strove signal output Flash ROM writing: BUSY
33 CS SDATA O Data output for decoder serial data
34 CS BDATA I Data input for decoder serial data
35 CS CLK O Clock output for decoder serial data
36~38 NC - Not used Opened output L fixed
39 EPM - Not used (Flash ROM: EPM) Opened output L fixed
40 PON D3.3 O D3.3V POWER ON control H: POWER ON, L: POWER OFF
41 PON A5 O A5.0V POWER ON control H: POWER ON, L: POWER OFF
42 PON CS1 O IC15 series 3.3V POWER ON control H:POWER ON, L: POWER OFF
43 PON CS2 O IC15 series 1.8V POWER ON control H:POWER ON, L: POWER OFF
44 CE - 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
