DM-3090
CIRCUIT DESCRIPTION
14
IC901 RH-iX0196AFZZ: System Control Microcomputer (iX0196AW)
Pin No.
Function
Port Name
Input/Output
Terminal Name
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
1*
P77/AN7
KEY1
Output
Not used
2
P76/AN6
KEY2
Input
Key entry
3
P75/AN5
KEY3
Input
Key entry
4*
P74/AN4
—
Output
Not used
5
P73/AN3
INI
Input
Initial setting entry
6
P72/AN2
JOG_AD
Input
Jog dial entry
7*,8*
P71/AN1,P70/AN0
—
Output
Not used
9*
PB3
—
Output
Not used
10
PB2/DA
DIG SEL1
Output
Digital signal selector selection signal
11*
P57/SRDY3/AN15
DIG SEL2
Output
Not used
12*
P56/SCLK3/AN14
—
Output
Not used
13*
P55/SOUT3/AN13
—
Output
Not used
14
P54/SIN3/AN12
DAC_MODE
Output
Externally provided DAC/ADC serial interface mode signal
15
P52/SRDY2/AN11
DAC_CLK/EX
Output
Externally provided DAC/ADC serial interface clock signal
16
P52/SCLK2/AN10
DAC_DATA/EX
Output
Externally provided DAC/ADC serial interface clock signal
17*
P51/SOUT2/AN9
—
Output
Not used
18
P50/SIN2/AN8
DFS0/DFS1
Input
EMPHASIS information from MD
19
P67/SRDY1/CS/
DSTRB
Input
MD serial interface strobe signal
SCLK12
20
P66/SCLK1
DSCK
Output
MD serial interface clock signal
21
P65/SOUT1
K-DATA
Output
MD serial interface transmission signal
22
P64/SIN1
MD-DATA
Input
MD serial interface reception signal
23
P63/CNTR1
MD-LO/EJ
Output
MD loading power voltage selection signal
24*
P62/CNTR0
—
Output
Not used
25*
P61/PWM
—
Output
Not used
26*
P60
—
Output
Not used
27*
P47/T3OUT
—
Output
Not used
28*
P46/T1OUT
—
Output
Not used
29
P45/INT1/2CR
P IN
Input
Power failure detection
30*
P44/INT4
P.CNT
Output
Power control
31
P41
P-OUT
Output
MD power failure detection signal
32
P42/INT2
RX-IN
Input
Remote control loght reception signal
33
P41
P-MUTE
Output
Audio mute control signal
34
P40/INT0
—
Input
GND
35
RESET
RESET
Input
RESET signal entry
36
PB1/Xcin
Xcin
Input
Sub clock IN connection (32.7k)
37
PB0/Xcout
Xcout
Output
Sub clock OUT connection (32.7k)
38
Xin
Xin
Input
Main clock IN connection (8M)
39
Xout
Xout
Output
Main clock OUT connection (8M)
40
VSS
VSS
Input
GND
41
P27
SERCH
Output
CD to MD search monitor signal
42
P26
LOAD
Input
MD loading detection
43
P25
S-ID
Output
CD to MD start ID signal
44
P24
MD RESET
Output
RESET signal to MD
DM-3090(K)
COVER
97.11.29
0:20
AM
y [ W
39
Содержание DM-3090
Страница 31: ...DM 3090 31 PARTS DESCRIPTIONS ...