SC9641 Silan, SC9641 Datasheet - Page 6

• Manufacturer Part Number: SC9641
• Description: CD Digital Signal Processor
• Manufacturer: Silan

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FUNCTION DESCRIPTION
standard CPU interface. The detail of command and interface timing is explained in the following tables.
1.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
COMMAND
Pin No.
The system controller sets the mode and readout the status of signal processor and digital servo by the
(HEX)
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SYSTEM WRITE COMMAND TABLE:
01
03
08
TRAY_SW
SLED_SW
Pin name
STATUS
MOTO
LDON
VDDP
VREF
SLED
VSSP
BCLK
GND
RAD
FOC
VDD
CR
CL
PARAMETER
R
L
XXXXXXXX
XXXXXXXX
XXXXXXXX
(BIN)
Internal reference voltage for output channels
Digital audio right channel output pin.
Digital audio right channel filter pin.
Digital audio left channel filter pin.
Digital audio left channel output pin.
Tracking drive output
Focus drive output
Sled drive output
Ground
Shake signal output (high active, used for anti-seismic system)
75Hz frame sync signal output pin.
Spindle drive output.
Digital power supply.
Digital power supply.
Digital ground.
Tray loading position monitor signal input
Sled motor position monitor signal input
Laser control signal output (active high)
Set up 8 general I/O ports, one bit control one I/O port, when the bit is 1,
the corresponding port is set input, and it was set output port when it is 0.
IO.7~IO.0 corresponding the high bit to least bit. All ports set input status
when power on.
Set the data of output port. If it is input port, the data is IO.7~IO.0.
Set motor speed standard (the initial value is EFH);
Motor rotate speed when stable playing: 10000B
The low 5 bits set motor rotate speed lower limit: range (00000B~10000B)
The high 3 bits set motor rotate upper limit : (10000B~10111B)
According to the initial value, if the motor speed is in the range of
01111B~100111B , it consider the motor is stable, and can carry the next
operation.
FUNCTION DESCRIPTIONS
Descriptions
REV:1.0
(To be continued)
Page 6 of 15
SC9641
2008.03.24