
MODULAR CIRCUIT TECHNOLOGY

MCT-VIO+

  Data bus:                  32-bit VL-bus

  Size:                      Three-quarter length, half-height card

  Hard drive supported:      Four IDE(AT) drives

  Floppy drives supported:   Four 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB
                             drives

[Image]

                                CONNECTIONS

                    Function                              Location

  34-pin control cable connector - primary                  CN1
  floppy drive

  25-pin parallel port - external                           CN2

  40-pin IDE(AT) Interface connector - primary              CN3
  drive

  4-pin connector - primary IDE drive active LED            CN4

  10-pin serial port 2 - internal                           CN5

  9-pin serial port 1 - external/10-pin serial              CN6
  port 1 internal

  40-pin IDE (AT) Interface connector -                     CN7
  secondary drive

  4-pin connector - secondary drive active LED              CN8

  34-pin control cable connector - secondary                CN9
  floppy drive

  16-pin game port - internal                               CN10

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

     IOCHRDY signal disabled                 J7               Open

      IOCHRDY signal enabled                  J7              Closed

     Floppy drive enable                     J8             Pins 2 & 3
                                                              closed

      Floppy drive disable                    J8             Pins 1 & 2
                                                              closed

     Floppy drive normal compatible          J16            Pins 2 & 3
      mode enabled                                            closed

      Floppy drive enhanced mode              J16            Pins 1 & 2
      enabled                                                 closed

     IDE(AT) interface enabled               J17            Pins 2 & 3
                                                              closed

      IDE(AT) interface disabled              J17            Pins 1 & 2
                                                              closed

     Floppy drive I/O address is             J26            Pins 2 & 3
      3F0h                                                    closed

      Floppy drive I/O address is             J26            pins 1 & 2
      370h                                                    closed

     Game port enable                        J37             Closed

      Game port disable                       J37              Open

                   IDE CHANNEL AND ADDRESS CONFIGURATION

              Setting                      J18                 J19

          Primary and secondary     Pins 1 & 2 closed   Pins 2 & 3 closed
            channels enabled

          Primary channel only      Pins 2 & 3 closed   Pins 1 & 2 closed
             enabled (170h)

         Primary channel only      Pins 2 & 3 closed   Pins 2 & 3 closed
             enabled (1F0h)

                      IDE WAIT STATE FOR VL-BUS CLOCK

          Setting                J20             J21             J22

      General setting for    Pins 2 & 3      Pins 2 & 3      Pins 2 & 3
       all VL bus clocks        closed         closed          closed

        <= 33 MHz VL bus      Pins 1 & 2      Pins 2 & 3      Pins 1 & 2
             clock              closed         closed          closed

         > 33 MHz VL bus      Pins 2 & 3      Pins 1 & 2      Pins 2 & 3
             clock              closed         closed          closed

                       FLOPPY CHANNEL CONFIGURATION

            Setting                  J4            J5             J6

        Primary and secondary      Closed        Closed         Closed
          channels enabled

      Primary channel enabled      Open          Open           Open

  Note: The primary and secondary option is invalid with ECP mode.

                        PARALLEL PORT CONFIGURATION

               LPT                        J9                  J27

            LPT1 (378h)           Pins 2 & 3 closed    Pins 2 & 3 closed

             LPT2 (278h)           Pins 2 & 3 closed    Pins 1 & 2 closed

             LPT3 (3BCh)           Pins 1 & 2 closed    Pins 1 & 2 closed

               Disabled            Pins 1 & 2 closed    Pins 2 & 3 closed

                        SERIAL PORT 1 CONFIGURATION

               COM                        J10                 J11

            COM1 (3F8h)           Pins 2 & 3 closed    Pins 2 & 3 closed

             COM2 (2F8h)           Pins 2 & 3 closed    Pins 1 & 2 closed

             COM3 (3E8h)           Pins 1 & 2 closed    Pins 2 & 3 closed

               Disabled            Pins 1 & 2 closed    Pins 1 & 2 closed

                        SERIAL PORT 2 CONFIGURATION

               COM                        J12                 J13

            COM2 (2F8h)           Pins 2 & 3 closed   Pins 2 & 3 closed

             COM1 (3F8h)           Pins 1 & 2 closed   Pins 2 & 3 closed

             COM4 (2E8h)           Pins 2 & 3 closed   Pins 1 & 2 closed

               Disable             Pins 1 & 2 closed   Pins 1 & 2 closed

                     PARALLEL PORT MODE CONFIGURATION

              Mode                       J28                  J29

              Printer            Pins 2 & 3 closed    Pins 2 & 3 closed

            EPP & Printer         Pins 1 & 2 closed    Pins 2 & 3 closed

                 ECP              Pins 2 & 3 closed    Pins 1 & 2 closed

              EPP & ECP           Pins 1 & 2 closed    Pins 1 & 2 closed

                      ECP DMA SELECTION

  Channel       J38       J39       J40       J41       J42

   DMA 1      Closed     Open      Open     Closed    Closed

   DMA 3      Closed    Closed    Closed     Open      Open

  Disabled     Open      Open      Open      Open      Open

                      SERIAL PORT INTERRUPT SELECTION

  Serial Port 1      Serial        J32          J33        J34       J35
                     Port 2

          No           No          Open        Open        Open      Open
      Interrupt    Interrupt

          No         IRQ 3         Open       Closed       Open      Open
      Interrupt

          No         IRQ 4         Open      J33/pin 1     Open
      Interrupt                                  to
                                             J34/pin 1

          No         IRQ 5       J32/pin 1     Open        Open
      Interrupt                 to J33/pin
                                    1

        IRQ 3          No          Open      J33/pin 2     Open
                   Interrupt                     to
                                             J34/pin 2

       IRQ3         IRQ 4         Open      J33/pin 1     Open
                                                 to
                                             J34/pin 1

                                             J33/pin 2
                                                 to
                                             J34/pin 2

        IRQ3          IRQ5       J32/pin 1     Open
                                    to
                                 J33/pin1

                                 J33/pin 2
                                to J34/pin
                                    2

        IRQ4           No          Open        Open       Closed     Open
                   Interrupt

        IRQ4          IRQ3         Open       Closed      Closed     Open

        IRQ4          IRQ5       J32/pin 1    Closed       Open
                                to J33/pin
                                    1

        IRQ5           No          Open        Open       J34/pin
                   Interrupt                               2 to
                                                          J35/pin
                                                            2

        IRQ5          IRQ3         Open       Closed      J34/pin
                                                           2 to
                                                          J35/pin
                                                            2

        IRQ5          IRQ4         Open      J33/pin 1
                                                 to
                                             J34/pin 1

                                             J34/pin 2
                                                 to
                                             P35/pin 2

                     PARALLEL PORT INTERRUPT SELECTION

              IRQ                       J35                   J36

                IRQ5                   Closed                 Open

               IRQ7                    Open                 Closed

            No Interrupt                Open                  Open

                       MISCELLANEOUS TECHNICAL NOTES

   Jumper J35 serves multiple functions so it appears in both serial port
               and parallel port interrupt selection tables.

