Kenwood KDC-MP333V Service Manual page 8

KDC-MP333V/MP333VS
MICROCOMPUTER'S TERMINAL DESCRIPTION
CD MECHANISM µ-COM: IC1 on X32- (CD PLAYER UNIT)
Pin No. Pin Name
1 VREFL
2 AVSS
3 AVCC
4 NC
5 20RST
6 20ACK
7 20STBY
8,9 NC
10 20INT
11 FOGUP
12 LZM
13 RZM
14,15 NC
16 20CS
17 20LP
18 20TXD0
19 20RXD0
20 20SCLK0
21 DSPTXD1
22 DSPRXD1
23 DSPSCLK1
24 AM0
25 DVCC
26 X2
27 DVSS
28 X1
29 AM1
30 RESET
31~34 NC
35 DSPSTB
36 DSPA0
37 DSPRST
38 DSPINT
39 /DAC RESET
40 SEARCH
41 LOE/LIM_SW
42~45 NC
46 PONE5
47 PONE2.5
8
I/O
I Reference V input terminal (for ADC)
- GND (for ADC)
- BU3.3V (for ADC)
O NC (open)
O Reset control terminal (for decoder)
I Acknowledge signal input terminal (for decoder)
O Stand-by control terminal (for decoder)
O NC (open)
I Interrupt signal input terminal (for decoder)
I Focus gain interrupt input terminal
I 0bit MUTE detect (Lch)
I 0bit MUTE detect (Rch)
O NC
O Chip select signal output terminal (for decoder)
O Latch pules signal output terminal (for decoder)
I/O Serial data signal output terminal (for decoder)
I Serial data signal input terminal (for decoder)
O Serial data clock output terminal (for decoder)
O Serial data signal output terminal (for DSP)
I Serial data signal input terminal (for DSP)
O Serial data clock output terminal (for DSP)
I Select for ROM mode H : NORMAL, L : External ROM mode
- BU3.3V
O X'tal 16MHz
- GND
I X'tal 16MHz
I Fixed H
I Reset input terminal L : RESET, H : NORMAL
O NC
O Data strobe signal output terminal (for DSP)
O Command, parameter select signal (for DSP) H : Parameter, L : Command
O Reset control output terminal (for DSP)
I Interrupt signal input terminal (for DSP)
O Reset signal output terminal (for DSP)
O Search condition output terminal
I SLT SW detect input terminal
O NC
O +5V power supply control (for video)
O +2.5V power supply control (for video)
Description / Processing Operation
L : RESET, H : NORMAL
H : STAND BY, L : NORMAL
H : Focus gain UP, L : NORMAL
L : MUTE OFF, H : MUTE ON
L : MUTE OFF, H : MUTE ON
H : Interrupt
L : RESET, H : NORMAL
H : Search, L : NORMAL
H : Inside
H : POWER ON
H : POWER ON