6-24
DSP Commands
Cxh
Program 8-bit DMA mode digitized sound I/O
Output
bCommand, bMode, wLength.LowByte, wLength.HighByte
Remarks
Except for the high nibble being changed to 1100 binary, the
bCommand
byte is
organized identically as in command Bxh.
The
bMode
byte is organized exactly as in command Bxh.
For minimum signal amplitude, the signed 8-bit value is 00h; with unsigned data, the
equivalent value is 80h.
wLength
is a word giving the number of 8-bit samples less 1.
See Also
command Bxh, Program 16-bit DMA mode digitized sound I/O on common details
command D0h, Pause 8-bit DMA mode digitized sound I/O
command D4h, Continue 8-bit DMA mode digitized sound I/O
command DAh, Exit 8-bit auto-init DMA mode digitized sound I/O
Available
1.xx
2.00
2.01+
3.xx
4.xx
9
D0h
Pause 8-bit DMA mode digitized sound I/O
Output
D0h
Remarks
After receiving this command, the DSP will cease to send out DMA requests.
Applicable to both single-cycle and auto-init DMA modes.
See Also
command D4h, Continue 8-bit DMA mode digitized sound I/O
Available
1.xx
2.00
2.01+
3.xx
4.xx
9
9
9
9
9
Содержание SB0350
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