ADVANCED DIGITAL INFORMATION CORPORATION

ISA DCB

Data bus: 16-bit, ISA

Size: Three-quarter 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

                               SCSI ADDRESS

    SCSI ID        SW1/Switch 1       SW1/Switch 2        SW1/Switch 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

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

      Floppy drive port address                JP14             closed
      370-377h

  »   Floppy drive disabled                 JP15 & JP16          open

      Floppy drive enabled                  JP15 & JP16         closed

  »   I/O channel ready disabled          JP17/pins 1 & 2       closed

  »   I/O channel ready enabled           JP17/pins 2 & 3       closed

  »   SCSI Parity check enabled            SW1/switch 4           on
      (BT-542 only)

      SCSI Parity check disabled           SW1/switch 4          off
      (BT-542 only)

  »   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 disabled

      Synchronous transfer intitiation     SW1/switch 6          off
      from controller enabled

                                DMA CHANNEL

            DMA                 SW1/Switch 7            SW1/Switch 8

  »            5                     on                      on

               6                     off                     on

               7                     on                      off

           Disabled                  off                     off

                             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

        130h-133h            on               off               on

        230h-233h           off               on                on

        Reserved            off               off               on

        Reserved            off               off               off

                           BIOS ADDRESS BT-542B

          Address               SW2/Switch 4            SW2/Switch 5

  »         DC000h                   on                      on

            D8000h                   off                     on

            C8000h                   off                     off

           Disabled                  on                      off

                         BUS TRANSFER RATE BT-542B

             Rate                  Jumper JP11            Jumper JP13

  »          5.0MB/sec                 open                  open

  »          5.7MB/sec                 open                 closed

  »          6.7MB/sec                closed                 open

  »          8.0MB/sec                closed                closed

  Note: It is recommended that you leave JP11 and JP13 open at all times.

                      INTERRUPT REQUEST CONFIGURATION

       IRQ         SW2/Switch 6   SW2/Switch 7   SW2/Switch 8      JP3

  »     IRQ11           on             on             on          open

        IRQ9            on            off             on          open

        IRQ10          off             on             on          open

        IRQ12          off            off             on          open

        IRQ14           on             on            off          open

        IRQ15          off             on            off         closed

      Reserved         off            off            off           N/A

      Reserved          on            off            off           N/A

                INTERRUPT REQUEST CONFIGURATION (CONTINUED)

       IRQ            JP4        JP5         JP6        JP7        JP8

  »     IRQ11        open        open      closed      open        open

  »      IRQ9        open        open       open       open       closed

        IRQ10        open        open       open      closed       open

        IRQ12        open       closed      open       open        open

        IRQ14       closed       open       open       open        open

        IRQ15        open        open       open       open        open

       Reserved       N/A        N/A         N/A        N/A        N/A

       Reserved       N/A        N/A         N/A        N/A        N/A

                       MISCELLANEOUS TECHNICAL NOTE

  The ISA DCB can operate alone or paired with another ISA DCB. If you
  are using a pair of ISA DCB’s, please use the following defaults for
  the second card: SCSI ID: 7, SCSI Parity Check: Disabled, Auto-sense:
  Enabled, SCSI sych negotiation: Enabled, DMA Channel: 6, I/O Address:
  334h, Host BIOS: Disabled, Interrupt: IRQ12.