sc9822p Silan, sc9822p Datasheet - Page 13

• Manufacturer Part Number: sc9822p
• Description: Mp3 Decoder With Esp Function And Cd Interface
• Manufacturer: Silan

HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
3) DecodeMp3
is an 8 bits unsigned number, indicate whether this music needs ID3 decode;
4) PreDecodeFinished
the process of PreDecode after ID3 decode; OutReg2High, 8 bits unsigned number, ID3 shift address; If
these three registers are all 0xFF, this song will not contain ID3 information;
5) ContinueAfterPreDecode
has read the ID3 information before send command.
6) FastForward
fastforward ratio, the detail see the following table:
7) FastBackward
the fastforward ratio; Where the meanings of InpRegHigh is the same as fastforward; but the InpRegLow is
different, it expresses n of the play time: skip time=1: n.
8) RequestData
9) OperationErr
command; if the host received this command time after time during one song, it indicates this song has been
serious damaged; it can jump to the next song.
10 SetUpCDFS2
SetUpCDFS;
11 GetVersion
vice version number.
12 SetMaxPhysicalMSF
registers InpReg1High, InpReg1Low, and InpReg2High are corresponding to MSF value;
Skip scale is the ratio of play time and leap time.
InpRegHigh&InpRegLow is 16 bits unsigned number, indicate the playing music file number; InpReg2High
OutReg1High&OutReg1Low, 16 bits unsigned number, is used to indicate the ID3 start page address in
After host detects the PreDecodeFinished, the system will send command for playing music; and the host
InpReg1High, is used to express the second of each fastforward unit; InpReg1Low, is used to express the
Not support others
InpReg1High, is used to express the second of each fastbackward unit; InpReg1Low is used to express
OutReg1High, OutReg1Low, OutReg2High are the MSF of download address;
Except SetUpCDFS, if host detects the OperationErr at other state, it will send ForwardSkipFrame
Establish the tile document system; the meanings of the input and output parameter is the same as
Return to the current version number, OutRegHigh is the main version number, and the OutRegLow is the
The master indicates the SC9822P the maximum physical address of the CD by this command. The
InpRegHigh
InpRegLow
play time(s)
Skip scale
00h
00h
0.5
1:1
10h
01h
1:2
1
20h
02h
1:4
2
30h
1:8
03h
4
REV:1.0
SC9822P
Page 13 of 30
2006.07.21