参数资料
型号: YMF754-V
厂商: Yamaha Corporation
英文描述: DS-1E
中文描述: 副秘书长至1E
文件页数: 29/60页
文件大小: 305K
代理商: YMF754-V
YMF754
June 28, 1999
-35-
2-2. Sound Blaster Pro Block
Sound Blaster Pro block emulates the DSP commands of Sound Blaster and Sound Blaster Pro.
Only
playback functions are supported (record functions are not supported).
However, to maintain
compatibility for games, it is designed so that every DSP command receives a correct response.
The DMA transfer of this block uses PC/PCI or D-DMA protocol.
The following shows the SBBase I/O map of SB Pro.
SBBase
(R)
FM Synthesizer Status port
SBBase
(W)
FM Synthesizer Address port for Register Array 0
SBBase+1h
(R/W)
FM Synthesizer Data register
SBBase+2h
(W)
FM Synthesizer Address port for Register Array 1
SBBase+3h
(R/W)
FM Synthesizer Data port
SBBase+4h
(R/W)
SB Mixer Address port
SBBase+5h
(R/W)
SB Mixer Data port
SBBase+6h
(W)
SB DSP Reset port
SBBase+8h
(R)
FM Synthesizer Status port
SBBase+8h
(W)
FM Synthesizer Address port for Register Array 0
SBBase+9h
(R/W)
FM Synthesizer Data port
SBBase+Ah
(R)
DSP Read Data port
SBBase+Ch
(R)
DSP Write-buffer status port
SBBase+Ch
(W)
DSP Write Command/Data port
SBBase+Eh
(R)
DSP Read-buffer status port
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