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PDF SC9821C Data sheet ( Hoja de datos )
| Número de pieza | SC9821C | |
| Descripción | CD Electronic Shockproof Controller | |
| Fabricantes | Silan | |
| Logotipo |  |
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SC9821C
CD ELECTRONIC SHOCKPROOF CONTROLLER
DESCRIPTION
SC9821C is a kind of CD player with electronic anti-shock
function.
FEATURES
* Provide 4 compress modes: 16:4, 16:5, 16:6 and non-compress
mode
* Provide 3 pairs data, 2 pairs data and direct comparison
connect three comparison connect modes.
LQPF-64-10x10-0.5
* Serial host interface
* Support CD-DA straight in mode
* Support SDRAM/DRAM interface
* Only need one external 16.9344MHz crystal oscillator
* Support various play functions: skip forward/backward in track, ORDERING INFORMATION
skip forward/backward between tracks, pause, and play and so
on.
Device
Package
* Support 1M/4M/8M/16Mx16 SDRAM, 1M/4M x16 DRAM
SC9821C
LQFP-64-10X10-0.5
APPLICATIONS
* CD
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2006.07.21
Page 1 of 18
1 page  
www.DataSheet4U.com
SC9821C
(Continued)
Pin No.
Pin name
47 VDD3.3
48 XALTI
49 XALTO
50 NotExtAsyncReset
51
TestMode
52 VSS
53 VDD1.8
54 SsiSClk
55 Data
56 DataAvail
57 YFCLK
58 YBLKCK
59 YFLAG
60 InterruptToMcu
61 Addr<0>
62 Addr<1>
63 Addr<2>
64 Addr<3>
I/O Pin descriptions
I Power supply for chip ports (3.3V)
I Crystal oscillator input pin
O Crystal oscillator output pin
I System reset pin which is low active
Test mode configuration pin (high active, connect to the ground
I
when the chip is not in test mode).
I Ground.
I Power supply for chip kernel. (1.8V)
I Clock input pin of MCU interface
I/O Data pin of MCU interface
I Communication control pin of MCU interface
I Sub code frame sync signal
I Sub code block sync signal
I CD servo error flag
O Interrupt signal output to MCU, and high active
O SDRAM/DRAM address pin 0
O SDRAM/DRAM address pin 1
O SDRAM/DRAM address pin 2
O SDRAM/DRAM address pin 3
FUNCTION DESCRIPTION
1. INTERFACE FUNCTION
1.1 Interface to main control MCU
SC9821C communicates with MCU through synchronism serial bus (SSI) data interface of SILAN Company.
1.1.1 Serial interface signal form
The serial interface communicating with MCU has 3 signal lines including control signal, data signal, and the
signal sequence is as followed:
Where, SsiSClk is the clock generating from Host port, and the frequency can fluctuate in a wide range (as
long as the wave is not distortion), and is independent of Guest port; DataAvail used for marking effective data
time is also sent by host computer and it is a low active; Data is a bidirectional signal with pull-up resistor and
used for specific data communication and feedback. As above picture, the data sent by the host port is all at
the falling edge of SsiSClk and the feedback data or Ack signal of guest port are at the rising edge. We define
one transmitting process as a frame, and the specification of the coherent signals are as follows:
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2006.07.21
Page 5 of 18
5 Page 
www.DataSheet4U.com
SC9821C
(Continued)
Symbol
MSC90H [7:0]
Address
0x53
R/W
W
Initialization
Description
0x00
Bit[2] : Encoder stop because the internal
reason:
0->encoder normal operation (compare &
connect complete, encoder local reset,
external reset).
1->Encoder stop because the internal
reason,(FLAG6,,BOVF, MSOVF are set).
Bit[3]:Compare and connect operation symbol :
0->not connect the coding (compare &
connect complete, compare & connect
stop, external reset),
1->execute the coding connect operation
(compare & connect command).
Note:
During the compare & connect, send the
encoder start command, it equal to send
compare & connect command directly.
So there can clear the compare &
connect symbol.
Bit[5] :Input buffer overflow symbol:
0-> input buffer normal, (this register read
data, codec local reset, external reset)
1->input buffer overflow, (input buffer
overflow).
Bit[6]: External DRAM write overflow symbol:
0-> external DRAM normal write, (this
register read data, codec local reset,
external reset).
1-> external DRAM write overflow
Bit[7]: Shock symbol:
0-> normal operation, no shock, (this register
read data, ESP operate mode from
straight in switch to shockproof mode,
external reset).
1-> CD shock, (detect the CD vibrate)
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2006.07.21
Page 11 of 18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet SC9821C.PDF ] | |
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