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參數(shù)資料
| 型號： | VS1003 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | Codec |
| 英文描述： | MP3 / WMA AUDIO CODEC |
| 中文描述： | MP3播放/ WMA音頻編解碼器 |
| 文件頁數(shù)： | 33/57頁 |
| 文件大?。?/td> | 456K |
| 代理商： | VS1003 |
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VLSI
Solution
y
VS1003 PRELIMINARY
VS1003
8. FUNCTIONAL DESCRIPTION
8.6.5
SCI DECODE TIME (RW)
When decoding correct data, current decoded time is shown in this register in full seconds.
The user may change the value of this register. In that case the new value should be written twice.
SCI DECODE TIME is reset at every software reset and also when WAV (PCM or IMA ADPCM),
WMA, or MIDI decoding starts or ends.
8.6.6
SCI AUDATA (RW)
When decoding correct data, the current sample rate and number of channels can be found in bits 15:1
and 0 of SCI AUDATA, respectively. Bits 15:1 contain the sample rate divided by two, and bit 0 is 0 for
mono data and 1 for stereo. Writing to SCI AUDATA will change the sample rate directly.
Example: 44100 Hz stereo data reads as 0xAC45 (44101).
8.6.7
SCI WRAM (RW)
SCI WRAM is used to upload application programs and data to instruction and data RAMs. The start
address must be initialized by writing to SCI WRAMADDR prior to the first write/read of SCI WRAM.
As 16 bits of data can be transferred with one SCI WRAM write/read, and the instruction word is 32 bits
long, twoconsecutivewrites/readsareneededforeachinstructionword. Thebyteorderisbig-endian(i.e.
most significant words first). After each full-word write/read, the internal pointer is autoincremented.
8.6.8
SCI WRAMADDR (W)
SCI WRAMADDR is used to set the program address for following SCI WRAM writes/reads.
SM WRAMADDR
Start...End
0x1800...0x187F
0x5800...0x587F
0x8030...0x84FF
0xC000...0xFFFF
Dest. addr.
Start...End
0x1800...0x187F
0x1800...0x187F
0x0030...0x04FF
0xC000...0xFFFF
Bits/
Word
16
16
32
16
Description
X data RAM
Y data RAM
Instruction RAM
I/O
Version 0.92,
2005-06-07
33
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VS1003-BB | 制造商:Distributed By MCM 功能描述:VS1003 MP3/WMA BREAKOUT BOARD |
| VS1003B-L | 制造商:CONSONANCE 制造商全稱:CONSONANCE 功能描述:芬蘭VLSI廠家生產(chǎn)的音頻編解碼芯片 |
| VS100-48 | 制造商:TDK-Lambda Corporation 功能描述:105.6W AC To DC Switching Power Supply - 85-132V/110-175V in - 48V 2.2A out |
| VS1005 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:此產(chǎn)品是芬蘭VLSI剛剛研發(fā)成功的音頻編解碼芯片樣品 |
| VS100AE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CAMERA MONOCHROME |
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