SCIENTIFIC MICRO SYSTEMS, INC.

OMTI 9542

  Data bus:                16-bit, ISA

  Size:                    Three/quarter-length, full-height card

  Hard drive supported:    Up to 7 SCSI devices

  Floppy drives            None
  supported:

[Image]

                      CONNECTIONS

               Function                   Location

  4-pin connector - drive active LED         J1

  34-pin floppy drive connector              J2

  50-pin SCSI connector - internal           J3

  50-pin SCSI connector - external           J4

                                  SCSI ID

      SCSI ID             SW1/1             SW1/2             SW1/3

  »        7               on                on                 on

           0               off               off               off

           1               on                off               off

           2               off               on                off

           3               on                on                off

           4               off               off                on

           5               on                off                on

           6               off               on                 on

                        USER CONFIGURABLE SETTINGS

               Function                     Location          Setting

  »   SCSI parity enabled                    SW1/4               on

      SCSI parity disabled                   SW1/4              off

  »   Auto SCSI sense enabled                SW1/5               on

      Auto SCSI sense disabled               SW1/5              off

  »   Sync negotiation disabled              SW1/6               on

      Sync negotiation enabled               SW1/6              off

  »   Floppy primary address is 3Fxh          W14               open

      Floppy secondary address is             W14              closed
      37xh

  »   I/O channel ready enabled          W17/pins 1 & 2        closed

      I/O channel ready disabled         W17/pins 2 & 3        closed

                                   INTERRUPT SELECTION

     IRQ      SW2/6   SW2/7   SW2/8     W3      W4       W5       W6       W7       W8

  »    11      on      on      on      open    open     open     closed   open     open

        9      on      off     on      open    open     open     open     open    closed

       10      off     on      on      open    open     open     open     closed   open

       12      off     off     on      open    open     closed   open     open     open

       14      on      on      off     open    closed   open     open     open     open

       15      off     on      off    closed   open     open     open     open     open

      Rsrvd.   off     off     off     N/A      N/A      N/A      N/A      N/A     N/A

      Rsrvd.   on      off     off     N/A      N/A      N/A      N/A      N/A     N/A

                               DMA SELECTION

             DMA                      SW1/7                  SW1/8

  »              5                      on                    on

                 6                     off                    on

                 7                      on                    off

             Disabled                  off                    off

  FLOPPY DISK CONTROLLER CONFIGURATION

  Controller       W15          W16

   Enabled       closed        closed

   Disabled       open          open

                             DMA TRANSFER RATE

        Transfer Rate                 W11                    W13

  »        5.0 MB/sec                 open                   open

           5.7 MB/sec                 open                  closed

           6.7 MB/sec                closed                  open

           8.0 MB/sec                closed                 closed

                             I/O BASE ADDRESS

         Address               SW2/1           SW2/2           SW2/3

  »       330h-333h             on              on               on

          130h-133h             on              off              on

          134h-137h             on              off             off

          230h-233h             off             on               on

          234h-237h             off             on              off

          334h-237h             on              on              off

           Reserved             off             off             off

           Reserved             off             off              on

       BIOS BASE ADDRESS

  Address    SW2/4      SW2/5

  0DC000h      on        on

  0C8000h     off        off

  0CC000h      on        off

  0D8000h     off        on

       MISCELLANEOUS TECHNICAL NOTES

  The terminators must remain installed.