– 71 –
MD-R3H
1
P77/AN7-P75/AN5
KEY1-KEY3
Input
Key input
4*
P74/AN4
—
Input
Not used
5
P73/AN3
INI
Input
Initial setting read-in
6
P72/AN2
JOG_AD
Input
Jog dial read-in
7
P71/AN1
MLAS
Output
CD_SRV interface latch signal
8
P70/AN0
MCK
Output
CD_DSP serial interface clock signal
9
PB3
MLAD
Output
CD_DSP interface latch signal
10
PB2/DA
MSD/DIG SEL
Output
Also used for CD_DSP serial interface command data/Q codes
and digital signal selector switching signals
11
P57/SRDY3/AN15
JP1
Output
SRV_IC jump brake control signal for the CD
12
P56/SCLK3/AN14
PUIN
Input
CD pick-up position detection
13
P55/SOUT3/AN13
LOCKDRD
Input
Read-in the frame synchronous signal/disc rotary state signal
from the CD DSP
14
P54/SIN3/AN12
DAC_MODE
Output
External DAC/ADC serial interface mode signal
15
P53/SRDY2/AN11
DAC_CLK/EX_SCK
Output
Also used for the external DAC/ADC serial interface clock signal
and the serial/parallel IC serial interface clock signal
16
P52/SCLK2/AN10
DAC_DATA/EX_DATA
Output
Also used for the external DAC/ADC serial interface clock signal
and the serial/parallel IC serial interface data signal
17
P51/SOUT2/AN9
EX_LCK
Output
Also used for the serial/parallel IC serial interface latch signal
18
P50/SIN2/AN8
DFS0/DFS1
Input
EMPHASIS information from the MD
19
P67/SRDY1/CS/
DSTRB
Input
Serial interface strobe signal for the MD
SCLK12
20
P66/SCLK1
DSCK
Output
Serial interface clock signal for the MD
21
P65/SOUT1
K-DATA
Output
Serial interface transmission data for the MD
22
P64/SIN1
MD-DATA
Input
Serial interface reception data for the MD
23
P63/CNTR1
MD-LO/EJ
Output
MD loading supply voltage switching signal
24
P62/CNTR0
D-OUT
Input
Track count signal/FSOK signal from the CD SRV_IC
25
P61/PWM
CH CMND
Output
Serial interface transmission data for the CD changer
26
P60
CH DATA
Input
Serial interface reception data for the CD changer
27
P47/T3OUT
CH RDY
Input
Serial interface ready signal for the CD changer
28
P46/T1OUT
CH CLK
Output
Serial interface clock signal for the CD changer
29
P45/INT1/2CR
P IN
Input
Power failure detection
30*
P44/INT4
PCNT
Output
Power control signal
31
P43/INT3
P-OUT
Output
Power failure detection signal to the MD
32
P42/INT2
RX IN
Input
Remote control optical reception signal
33
P41
P-MUTE
Output
Audio mute control signal
34
P40/INT0
SBQS
Input
CD sub-code Q read-out interrupt signal
35
RESET
RESET
Input
Read-in for the RESET signal
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 the MD
45-54
P23/DIG19-
UDIG0-UDIG9
Output
Digit for FL drive
P12/DIG10
55,56
P11/SEG41/DIG9,
UDIG10,UDIG11
Output
Digit for FL drive
P10/SEG40/DIG8
57-60
P07/SEG39/DIG7-
UDIG12-UDIG15
Output
Digit for FL drive
P04/SEG36/DIG4
61-64
P05/SEG35/DIG3-
S35-S32
Output
Segment for FL drive
P00/SEG33/DIG0
IC901 RH-iX0220AWZZ: System Control Microcomputer (IX0220AW) (1/2)
FUNCTION TABLE OF IC
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.