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參數資料
| 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： | 46/57頁 |
| 文件大?。?/td> | 456K |
| 代理商： | VS1003 |
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VLSI
Solution
y
VS1003 PRELIMINARY
VS1003
10. VS1003 REGISTERS
10.10
Watchdog
v1.0 2002-08-26
The watchdog consist of a watchdog counter and some logic. After reset, the watchdog is inactive.
The counter reload value can be set by writing to WDOG CONFIG. The watchdog is activated by writ-
ing 0x4ea9 to register WDOG RESET. Every time this is done, the watchdog counter is reset. Every
65536’th clock cycle the counter is decremented by one. If the counter underflows, it will activate vs-
dsp’s internal reset sequence.
Thus, after the first 0x4ea9 write to WDOG RESET, subsequent writes to the same register with the
same value must be made no less than every
65536
×
WDOG CONFIG clock cycles.
Once started, the watchdog cannot be turned off. Also, a write to WDOG CONFIG doesn’t change the
counter reload value.
Afterwatchdoghasbeenactivated, anyread/writeoperationfrom/toWDOG CONFIGorWDOG DUMMY
will invalidate the next write operation to WDOG RESET. This will prevent runaway loops from re-
setting the counter, even if they do happen to write the correct number. Writing a wrong value to
WDOG RESET will also invalidate the next write to WDOG RESET.
Reads from watchdog registers return undefined values.
10.10.1
Registers
Watchdog, prefix WDOG
Reset
Abbrev
0
CONFIG
0
RESET
0
DUMMY[-]
Reg
Type
w
w
w
Description
Configuration
Clock configuration
Dummy register
0xC020
0xC021
0xC022
Version 0.92,
2005-06-07
46
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PDF描述 |
|---|---|
| VS100 | Interface IC |
| VS100AE | CAMERA MONOCHROME |
| VS1024 | AREA CCD IMAGE ARRAY |
| VS10P05 | Direct ProTek Replacement:VS10P05 |
| VS10P05C | Direct ProTek Replacement:VS10P05C |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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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