MICRO SOLUTIONS, INC.

COMPATICARD IV

Card Type            Floppy drive controller
Chipset/Controller   Intel
I/O Options          Floppy drive interface (supports up to four drives)
Maximum DRAM         N/A

[Image]

                                CONNECTIONS

       Purpose           Location           Purpose            Location

  Floppy drive              P2         Floppy drive               P4
  interface                            interface
  (Internal)                           (External)

  Floppy drive              P3
  interface
  (Internal)

  FACTORY CONFIGURED - DO NOT ALTER

      Switch            Position

   SW1/switch 4            Off

                       CONTROLLER ADDRESS SELECTION

   Controller      J1/Pins 1 &   J1/Pins 3 &   J1/Pins 5 &    J1/Pins 7 &
                       2             4              6             8

  »     First        Closed         Open          Open           Open

       Second         Open         Closed         Open           Open

        Third         Open          Open         Closed          Open

       Fourth         Open          Open          Open          Closed

                       EXTERNAL POWER CONFIGURATION

  Power convention   +5V    +12V     GND      J3      J4     J5      J6

  »    Disabled      None   None     N/A     Pins    Pins    Pins    Pins
                                              1 &     1 &    1 &    1 & 2
                                              2       2       2

         Micro       Pin     Pin     Pins    Pins    Pins    Pins    Pins
       Solutions      2      1      20-37     1 &     1 &    2 &    2 & 3
                                              2       2       3

       Alternate     Pin     Pin    Pins 2   Pins    Pins    Pins    Pins
                      4      1       & 3      2 &     2 &    1 &    2 & 3
                                              3       3       2

       Note: Pins designated should be in the closed position. For most
       applications, power is supplied by a power supply in the external
       drive cabinet and the Power Convention should be disabled.

                          BIOS ADDRESS SELECTION

         Address               SW1/1           SW1/2           SW1/3

  »       CE00:0000h            Off              On             Off

          CC00:0000h            Off             Off              On

          D000:0000h            Off              On              On

          D800:0000h             On             Off             Off

          DE00:0000h             On             Off              On

          E800:0000h             On              On             Off

          EE00:0000h             On              On              On

           Disabled             Off             Off             Off

                            DMA CHANNEL SELECTION

  DMA     J2/7     J2/8     J2/9    J2/10    J2/11    J2/12    SW1/5   SW1/6

  »   2    On     Closed     On       On     Closed    On       On     Off

      2    On     Closed     On       On     Closed    On      Off     Off

      1  Closed     On       On     Closed    On       On      Off      On

      3    On       On     Closed     On      On      Closed    On      On

  Note: When both switches are Off, the DMA is set for 2, and the interrupt
  must be set for IRQ6.

                            INTERRUPT SELECTION

   IRQ       J2/1       J2/2      J2/3       J2/4       J2/5       J2/6

  »   2     Closed      Open      Open       Open       Open       Open

      3      Open      Closed     Open       Open       Open       Open

      4      Open       Open     Closed      Open       Open       Open

      5      Open       Open      Open      Closed      Open       Open

      6      Open       Open      Open       Open      Closed      Open

      7      Open       Open      Open       Open       Open      Closed

                      DUAL SPEED DRIVE CONFIGURATION

            1.2MB Drive Type                           SW1/7

  »             Single Speed                            Off

                 Dual Speed                             On

                          AUTO BOOT CONFIGURATION

                Auto Boot                              SW1/7

  »                Enabled                               On

                   Disabled                             Off

       Note: When Auto Boot is enabled, Compaticard IV will search each
       drive installed looking for a DOS system disk. If no System disk
       is found, system boot will proceed as normal. If a DOS system disk
       is encountered, system will boot from that drive.

                           DRIVE TYPE SELECTION

   Drive Type      Position #    Cable Type     Connection      Setting
                                    Used

   360KB/1.2MB         0          Twisted           P2         SW2/1 Off,
                                                               SW2/2 on

      1.4MB            1          Straight          P2         SW2/3 on,
                                                               SW2/4 Off

      2.8MB            2          Twisted        P3 or P4      SW2/5 on,
                                                               SW2/6 on

      None             3          Straight       P3 or P4      SW2/7 Off,
                                                               SW2/8 Off