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参数资料
| 型号： | YMF724F |
| 厂商： | Yamaha Corporation |
| 英文描述： | high performance audio controller for the PCI Bus |
| 中文描述： | 高性能音频控制器的PCI总线 |
| 文件页数： | 26/50页 |
| 文件大小： | 268K |
| 代理商： | YMF724F |
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YMF724F
January 14, 1999
-32-
2-2-1. DSP Command
The following shows the list of DSP Commands that are supported by the SB Pro engine.
Both SB and
SB Pro commands are supported.
CMD Support Function
10h
o
8bit direct mode single byte digitized sound output
14h
o
8bit single-cycle DMA mode digitized sound output
16h
8bit to 2bit ADPCM single-cycle DMA mode digitized sound output
17h
8bit to 2bit ADPCM single-cycle DMA mode digitized sound output with ref. byte
1Ch
o
8bit auto-init DMA mode digitized sound output
1Fh
8bit to 2bit ADPCM auto-init DMA mode digitized sound output with ref. byte
20h(*1)
o
8bit direct mode single byte digitized sound input
24h(*1)
o
8bit single-cycle DMA mode digitized sound input
2Ch(*1)
o
8bit auto-init DMA mode digitized sound input
30h
o
Polling mode MIDI input
31h
o
Interrupt mode MIDI input
34h
o
UART polling mode MIDI I/O
35h
o
UART interrupt mode MIDI I/O
36h(*2)
o
UART polling mode MIDI I/O with time stamping
37h(*2)
o
UART interrupt mode MIDI I/O with time stamping
38h
o
MIDI output
40h
o
Set digitized sound transfer Time Constant
48h
o
Set DSP block transfer size
74h
o
8bit to 4bit ADPCM single-cycle DMA mode digitized sound output
75h
o
8bit to 4bit ADPCM single-cycle DMA mode digitized sound output with ref. byte
76h
8bit to 3bit ADPCM single-cycle DAM mode digitized sound output
77h
8bit to 3bit ADPCM single-cycle DMA mode digitized sound output with ref. byte
7Dh
o
8bit to 4bit ADPCM auto-init DMA mode digitized sound output with ref. byte
7Fh
8bit to 3bit ADPCM auto-init DMA mode digitized sound output with ref. byte
80h
o
Pause DAC for a duration
90h
o
8bit high-speed auto-init DMA mode digitized sound output
91h
o
8bit high-speed single-cycle DMA mode digitized sound output
98h(*1)
o
8bit high-speed auto-init DMA mode digitized sound input
99h(*1)
o
8bit high-speed single-cycle DMA mode digitized sound input
A0h(*1)
o
Set input mode to mono
A8h(*1)
o
Set input mode to stereo
D0h
o
Pause 8bit DMA mode digitized sound I/O
D1h(*3)
o
Turn on speaker
D3h(*3)
o
Turn off speaker
D4h
o
Continue 8bit DMA mode digitized sound I/O
D8h
o
Get speaker status
DAh
o
Exit 8bit auto-init DMA mode digitized sound I/O
E1h
o
Get DSP version number
Note:
(*1) The SB Block responds correctly to the commands for recording and also executes the DMA transfer.
80h is always transferred.
(*2) Only output is supported for this command.
(*3) This command only changes Speaker Status (D8h).
Undocumented commands other than the ones listed above are also supported.
相关PDF资料 |
PDF描述 |
|---|---|
| YMF724F-V | high performance audio controller for the PCI Bus |
| YMF740C | DS-1L |
| YMF743-S | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| YMF743 | AC97 Revsion2.1 Audio CODEC with Digital Audio I/F(AC97 2.1版音频编解码器（带数字音频接口）) |
| YMF744B | DS-1S |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YMF724F-V | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:high performance audio controller for the PCI Bus |
| YMF740C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DS-1L |
| YMF740CV | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| YMF743 | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:AC’97 Revsion2.1 Audio CODEC with Digital Audio I/F |
| YMF743-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Consumer IC |
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