Creative SB0350 Hardware Programming Guide - Page 122

A-8 Sound Blaster I/O Address Maps SBPRO MCV I/O Address Map Sound Blaster Pro for Micro Channel Version uses base I/O address 220h or 240h. These are jumper selectable. Base Address 220h 240h I/O Addresses Used 220h to 233h 240h to 253h Table A-12: SBPRO MCV I/O Ports The following table lists the functions of the I/O ports: I/O Address Base + 0h Base + 0h Base + 1h Base + 2h Base + 2h Base + 3h Base + 4h Base + 5h Base + 6h Base + 8h Base + 8h Base + 9h Base + Ah Base + Ch Base + Ch Base + Eh Base + 10h Base + 11h Base + 12h Base + 13h Description FM Music Status Port FM Music Register Address Port FM Music Data Port Advanced FM Music Status Port Advanced FM Music Register Address Port Advanced FM Music Data Port Mixer chip Register Address Port Mixer chip Data Port DSP Reset FM Music Status Port FM Music Register Port FM Music Data Port DSP Read Data Port DSP Write Command/Data DSP Write-Buffer Status (Bit 7) DSP Read-Buffer Status (Bit 7) Reserved Reserved Reserved Reserved Access Read Write Write Only Read Write Write Only Write Only Read/Write Write Only Read Write Write Only Read Only Write Read Read Only Table A-13: SBPRO MCV I/O Port Functions FM music can also be accessed through I/O addresses 388h and 389h. I/O addresses from 38Ah to 39Fh are reserved for future expansion.