
MONOLITHIC SYSTEMS, INC. (COLORADO MSI)

MICROPAQ 452

  Data bus:                  16-bit ISA

  Size:                      Full-length, Full-height card

  Hard drive supported:      2 IDE(AT) interface drives

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

[Image]

                               CONNECTIONS

                    Function                             Location

  40-pin IDE(AT) interface connector                        J1

  34-pin control cable connector - floppy drive             J2

  25-pin parallel port - internal                           J3

  9-pin serial port 1 - internal                            J4

  9-pin serial port 2 - internal                            J5

  4-pin connector - drive active LED                        J6

  VGA feature connector                                     J7

  EGA feature connector                                    J11

  15-pin analog video port                                 J13

  15-pin digital video port                                J21

                        USER CONFIGURABLE SETTINGS

                Function                     Location         Setting

     IDE(AT) interface pin 34 grounded        J10             closed

      IDE(AT) interface pin 34 not             J10              open
      grounded

     Floppy drive interface                   J12              open
      precompensation is 125ns

      Floppy drive interface                   J12             closed
      precompensation is 187ns

     IDE(AT) interface enabled                J14              open

      IDE(AT) interface disabled               J14             closed

     On-board video adapter enabled           J15             closed

      On-board video adapter disabled          J15              open

                   USER CONFIGURABLE SETTINGS(CONTINUED)

               Function                     Location          Setting

     Floppy drive interface                  J16              closed
      interrupt IRQ6 enabled

      Floppy drive interface                  J16               open
      interrupt IRQ6 disabled

     Single speed floppy drive               J17               open

      Dual speed floppy drive                 J17              closed

     16-bit mode enabled                     J18               open

      8-bit mode enabled                      J18              closed

     Floppy disk change signal               J19              closed
      enabled

      Floppy disk change signal               J19               open
      disabled

     Monitor type select color               J20            pins 1 & 2
                                                               closed

      Monitor type select monochrome          J20            pins 2 & 3
                                                               closed

     VGA clock enabled                       J22            pins 1 & 2
                                                               closed

      Feature clock enabled                   J22            pins 2 & 3
                                                               closed

     Floppy drive interface enabled          J23              closed

      Floppy drive interface disabled         J23               open

     IDE(AT) interface interrupt             J24              closed
      IRQ14 enabled

      IDE(AT) interface interrupt             J24               open
      IRQ14 disabled

     Factory configured - do not             S4/6              N/A
      alter

                        VIDEO DISPLAY CONFIGURATION

  Primary     Alternate      J20    S4/1    S4/2    S4/3    S4/4    S4/5

    MDA        EGA w/CD      pins    on      on      on      on      off
                40x25       1 & 2

    MDA        EGA w/CD      pins    off     on      on      on      off
                80x25       1 & 2

    MDA        EGA w/ED      pins    on      off     on      on      off
                200 ln      1 & 2

    MDA        EGA w/ED      pins    off     off     on      on      off
                350 ln      1 & 2

  CGA 40x25    EGA w/MD      pins    on      on      off     on      off
                            2 & 3

  CGA 80x25    EGA w/MD      pins    off     on      off     on      off
                            2 & 3

  EGA w/CD    MDA or none    pins    on      off     off     on      off
   40x25                    1 & 2

  EGA w/CD    MDA or none    pins    off     off     off     on      off
   80X25                    1 & 2

  EGA w/ED    MDA or none    pins    on      on      on     off      off
   200 ln                   1 & 2

  EGA w/ED    MDA or none    pins    off     on      on     off      off
   350ln                    1 & 2

  EGA w/MD     CGA 40x25     pins    on      off     on     off      off
               or none      2 & 3

  EGA w/MD     CGA 80x25     pins    off     off     on     off      off
               or none      2 & 3

   All VGA       N/A         N/A     on      N/A     N/A    N/A      N/A
   modes

  Note: All pins designated should be placed in the closed position.

                        PARALLEL PORT CONFIGURATION

       LPT         IRQ    S2/1    S2/2     S2/3    S2/4    S2/5     S2/6

         1       IRQ7     on      off     off     N/A      off      on

          2       IRQ5     off     on      off     N/A      on      off

          3       IRQ7     off     off      on     N/A      off      on

      Disabled     N/A     off     off     off     N/A      off     off

                     PRIMARY SERIAL PORT CONFIGURATION

   Port 1 (J4)     IRQ     S1/1    S1/2    S1/3    S1/4    S1/5     S1/6

       COM1       IRQ4     on     off     off     off      off      on

        COM2       IRQ3    off      on     off     off      on      off

        COM3       IRQ4    off     off      on     off      off      on

        COM4       IRQ3    off     off     off      on      on      off

      Disabled     N/A     off     off     off     off      off     off

                    ALTERNATE SERIAL PORT CONFIGURATION

   Port 2 (J5)     IRQ     S3/1    S3/2    S3/3    S3/4    S3/5     S3/6

       COM2       IRQ3    off      on     off     off      on      off

        COM1       IRQ4     on     off     off     off      off      on

        COM3       IRQ4    off     off      on     off      off      on

        COM4       IRQ3    off     off     off      on      on      off

      Disabled     N/A     off     off     off     off      off     off

                                  IOCHRDY

             Setting                      J8                   J9

     IOCHRDY signal comes from          open                closed
      pin 21

      IOCHRDY signal comes from         closed                open
      pin 27

