Kenwood DM-3090 Service Manual page 14

DM-3090
IC901 RH-iX0196AFZZ: System Control Microcomputer (iX0196AW)
Pin No. Port Name
1* P77/AN7
2 P76/AN6
3 P75/AN5
4* P74/AN4
5 P73/AN3
6 P72/AN2
7*,8* P71/AN1,P70/AN0
9* PB3
10 PB2/DA
11* P57/SRDY3/AN15
12* P56/SCLK3/AN14
13* P55/SOUT3/AN13
14 P54/SIN3/AN12
15 P52/SRDY2/AN11
16 P52/SCLK2/AN10
17* P51/SOUT2/AN9
18 P50/SIN2/AN8
19 P67/SRDY1/CS/
SCLK12
20 P66/SCLK1
21 P65/SOUT1
22 P64/SIN1
23 P63/CNTR1
24* P62/CNTR0
25* P61/PWM
26* P60
27* P47/T3OUT
28* P46/T1OUT
29 P45/INT1/2CR
30* P44/INT4
31 P41
32 P42/INT2
33 P41
34 P40/INT0
35 RESET
36 PB1/Xcin
37 PB0/Xcout
38 Xin
39 Xout
40 VSS
41 P27
42 P26
43 P25
44 P24
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
14
CIRCUIT DESCRIPTION
Terminal Name Input/Output
KEY1 Output
KEY2 Input
KEY3 Input
— Output
INI Input
JOG_AD Input
— Output
— Output
DIG SEL1 Output
DIG SEL2 Output
— Output
— Output
DAC_MODE Output
DAC_CLK/EX Output
DAC_DATA/EX Output
— Output
DFS0/DFS1 Input
DSTRB Input
DSCK Output
K-DATA Output
MD-DATA Input
MD-LO/EJ Output
— Output
— Output
— Output
— Output
— Output
P IN Input
P.CNT Output
P-OUT Output
RX-IN Input
P-MUTE Output
— Input
RESET Input
Xcin Input
Xcout Output
Xin Input
Xout Output
VSS Input
SERCH Output
LOAD Input
S-ID Output
MD RESET Output
Function
Not used
Key entry
Key entry
Not used
Initial setting entry
Jog dial entry
Not used
Not used
Digital signal selector selection signal
Not used
Not used
Not used
Externally provided DAC/ADC serial interface mode signal
Externally provided DAC/ADC serial interface clock signal
Externally provided DAC/ADC serial interface clock signal
Not used
EMPHASIS information from MD
MD serial interface strobe signal
MD serial interface clock signal
MD serial interface transmission signal
MD serial interface reception signal
MD loading power voltage selection signal
Not used
Not used
Not used
Not used
Not used
Power failure detection
Power control
MD power failure detection signal
Remote control loght reception signal
Audio mute control signal
GND
RESET signal entry
Sub clock IN connection (32.7k)
Sub clock OUT connection (32.7k)
Main clock IN connection (8M)
Main clock OUT connection (8M)
GND
CD to MD search monitor signal
MD loading detection
CD to MD start ID signal
RESET signal to MD