76
HCD-EA20
• IC901 CXP973064-232R (MECHANISM CONTROLLER)(DMB03 BOARD)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14 to 21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
48
49
50
51
52
53
54
55
56
I/O
O
O
O
O
I/O
I
O
O
I
O
O
O
—
I/O
I
I
O
O
I
O
O
I
I
I
O
I
O
O
O
O
I
O
O
O
I
O
O
—
I
Pin Name
NO USE
SDEN
DOCTRL/
ISBTEST
XPST 2753
SDA EEP
MNT1
FCS JMP 1
FCS JMP 2
SENS CD
CDSP2
CDSP4
XCS DVD
VSS
D0 to D7
INIT0 DVD
INIT1 DVD
MSCK SAMBA
XRST 1882
SCOR
LAT CD
LD ON
MIRR
COUT CD
INLIM
CS ZIVA
SI ZIVA
SO ZIVA
SCK ZIVA
DRVIRQ
DRVRDY
READY DSD
DATA CD
CLOK CD
XMSLAT
SQSO
MUTE DSD
SQCK
VSS
CONTROL 4
Description
Not used
Serial data enable signal output to DVD/CD RF amplifier
Digital out on/off control signal output to the digital signal processor
“L”: digital out off, “H”: digital out on
Reset signal output for DSD decoder
Two-way data bus with the EEPROM
EEPROM ready signal input from the DVD decoder
Focus jump 1 signal output to the motor/coil driver
Focus jump 2 signal output to the motor/coil driver
Internal status (SENSE) signal input from the digital signal processor
Loading motor drive signal (loading in direction) output terminal
Loading motor drive signal (loading out direction) output terminal
Chip select signal output to the DVD decoder
Ground terminal (digital system)
Two-way data bus with the DVD decoder
Interrupt signal input from the DVD decoder
Interrupt signal input from the DVD decoder
Serial data transfer clock signal output to the DSD decoder
Reset signal output to the DVD decoder “L”: reset
Subcode sync (S0+S1) detection signal input from the digital signal processor
Serial data latch pulse signal output to the digital signal processor
Laser diode on/off control signal output to the DVD/CD RF amplifier
“L”: laser diode off, “H”: laser diode on
Mirror signal input from the digital signal processor
Numbers of track counted signal input from the digital signal processor
Detection signal input from limit in switch The optical pick-up is inner position when “H”
Chip select signal output to the DVD system processor
Serial data input from the DVD system processor
Serial data output to the DVD system processor
Serial data transfer clock signal output to the DVD system processor
Interrupt request signal output to the DVD system processor
Ready signal output to the DVD system processor
System reset signal input from the DVD system processor “L”: reset
Ground terminal (digital system)
System clock input terminal (20 MHz)
System clock output terminal (20 MHz)
Power supply terminal (+3.3V) (digital system)
Sled motor drive signal output
Output terminal for offset adjustment of APEO
Serial data output to the DSD decoder
Serial data input from the DSD decoder
Ready signal input from the DSD decoder “L”: ready
Serial data output to the digital signal processor
Serial data transfer clock signal output to the digital signal processor
Serial data latch pulse signal output to the DSD decoder
Subcode Q data input from the digital signal processor
Muting on/off control signal output to the DSD decoder “H”: muting on
Subcode Q data reading clock signal output to the digital signal processor
Ground terminal (digital system)
Disc tray in detection signal input terminal Not used
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