BUSLOGIC, INC.

BT-542S, BT-542D

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Up to seven SCSI devices

Floppy drives supported: Two 360KB, 720KB, 1.2 MB or 1.44 MB drives

[Image]

                           CONNECTIONS

                  Function                        Location

  4-pin connector-drive active LED                   CN1

  34-pin data cable connector-floppy drives          CN2

  50-pin SCSI connector-internal                     CN3

  50-pin SCSI connector-external                     CN4

                        USER CONFIGURABLE SETTINGS

                Function                     Location          Setting

  »   Floppy drive port address                JP14              open
      3F0-3F7h

      Floppy drive port address                JP14             closed
      370-377h

  »   Floppy drive enabled                  JP15 & JP16         closed

      Floppy drive disabled                 JP15 & JP16          open

  »   SCSI Parity check enabled            SW1/switch 4           on

      SCSI Parity check disabled           SW1/switch 4          off

  »   SCSI Auto Sense function enabled     SW1/switch 5           on

      SCSI Auto Sense function             SW1/switch 5          off
      disabled

  »   Synchronous transfer initiation      SW1/switch 6           on
      from controller isabled

      Synchronous transfer intitiation     SW1/switch 6          off
      from controller enabled

                               SCSI ADDRESS

   SCSI I.D.       SW1/switch 1       SW1/switch 2        SW1/switch 3

         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

  »      7              on                 on                  on

                             I/O PORT ADDRESS

       Address          SW2/switch 1     SW2/switch 2      SW2/switch 3

  »     330h-333h            on               on                on

        134h-137h            on               off               off

        234h-237h           off               on                off

        334h-337h            on               on                off

        230h-233h           off               on                on

        130h-133h            on               off               on

        Reserved            off               off               off

        Reserved            off               off               on

                                IRQ SELECT

       IRQ         JP3 - JP8   SW2/switch 6   SW2/switch 7   SW2/switch 8

  »     IRQ11         JP6          on             on              on
                    closed

      Reserved       N/A           off            off            off

      Reserved       N/A           on             off            off

        IRQ9          JP8          on             off             on
                    closed

        IRQ10         JP7          off            on              on
                    closed

        IRQ12         JP5          off            off             on
                    closed

        IRQ14         JP4          on             on             off
                    closed

        IRQ15         JP3          off            on             off
                    closed

                                        . . . continued from previous page

BUSLOGIC, INC.

BT-542S, BT-542D

                                        . . . continued from previous page

                       BIOS BASE ADDRESS

    Address      SW3/switch 3    SW3/switch 4    SW3/switch 5

    Disabled          off             off            off

    Reserved          on              off            off

     C8000h           off             on             off

     CC000h           on              on             off

     D0000h           off             off             on

     D4000h           on              off             on

     D8000h           off             on              on

     DC000h           on              on              on

                                DMA CHANNEL

            DRQ                 SW1/switch 7            SW1/switch 8

  »            5                     on                      on

               6                     off                     on

               7                     on                      off

           Disabled                  off                     off

                             BUS TRANSFER RATE

            Rate                 SW3/switch 1            SW3/switch 2

  »       5.0 MB/second               on                      on

          5.7 MB/second               off                     on

          6.7 MB/second               on                     off

          8.0 MB/second               off                    off