SoundBlaster Pro  (250-1700)    I/O Address            Faxback Doc. # 5519

SoundBlaster Pro uses the base I/O address 220H or 240H for data transfer.
The factory default base I/O address is 220H.

200H-207H...Game port.............................(read/write)
Base+0H.....FM music Status Port..................(read)
Base+0H.....FM music Register Address Port........(write)
Base+1H.....FM music Data Port....................(write)
Base+2H.....Advanced FM music Status Port.........(read)
Base+2H.....Advanced music Register Address Port..(write)
Base+3H.....Advanced music Data Port..............(write)
Base+4H.....Mixer chip Register Address Port......(write)
Base+5H.....Mixer chip Data Port..................(read/write)
Base+6H.....DSP Reset.............................(write)
Base+8H.....FM music Status Port..................(read)
Base+8H.....FM music Register Address Port........(write)
Base+9H.....FM music Data Port....................(read)
Base+0AH....DSP Read Data.........................(read)
Base+0CH....DSP Write Data or Command.............(write)
Base+0CH....DSP Write Buffer Status (Bit 7).......(read)
Base+0EH....DSP Data Available Status (Bit 7).....(read)
Base+10H....CD-ROM data register..................(read/write)
Base+11H....CD-ROM status register................(read)
Base+12H....CD-ROM reset register.................(write)
Base+13H....CD-ROM enable register................(write)
388.........FM music Status Port..................(read)
388.........FM music Register Address Port........(write)
389.........FM music Data Port....................(write)
38AH-39FH.........................................(reserved)


(smm 08/02/93)
(smm 08/26/93)