LONGSHINE MICROSYSTEM, INC.

LCS-6640

  Data bus:                16-bit, ISA

  Size:                    Three/quarter-length, full-height card

  Hard drive supported:    Up to seven SCSI devices

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

[Image]

                              CONNECTIONS

                    Function                           Location

  34-pin control cable connector - floppy drive           CN1

  50 pin SCSI connector - internal                        CN2

  50 pin SCSI connector - external                        CN3

  2-pin connector - Drive active LED                      JP6

                     CACHE MEMORY CONFIGURATION - JP1

    Bank 0     Bank 1    Total     Jumper    Jumper    Jumper    Jumper 4
                         size        1         2         3

      256KB     0KB      512K     closed      open     closed     closed

  »   256KB    256KB      1MB     closed      open     closed      open

      256KB     1MB      2.5MB    closed      open      open      closed

      256KB     4MB      8.5MB    closed      open      open       open

      1MB       0KB       2MB      open      closed    closed     closed

      1MB      256KB     2.5MB     open      closed    closed      open

      1MB       1MB       4MB      open      closed     open      closed

      1MB       4MB      10MB      open      closed     open       open

      4MB       0KB       8MB      open       open     closed     closed

      4MB      256KB     8.5MB     open       open     closed      open

      4MB       1MB      10MB      open       open      open      closed

      4MB       4MB      16MB      open       open      open       open

                        USER CONFIGURABLE SETTINGS

              Function                    Location            Setting

  »   Hard drive port address is             JP3              closed
      1F0-1F7h

      Hard drive port address is             JP3               open
      170-177h

  »   Floppy drive port address is           JP4              closed
      3F0-3F7h

      Floppy drive port address is           JP4               open
      370-377h

                               BIOS ADDRESS

         Address                JP5/Jumper 1            JP5/Jumper 2

             D000h                 closed                  closed

  »          D200h                 closed                   open

             D400h                  open                   closed

            disable                 open                    open

                          INTERRUPT REQUEST - JP7

      IRQ        Jumper 1    Jumper 2   Jumper 3    Jumper 4    Jumper 5

       IRQ15      closed       open       open        open        open

  »    IRQ14       open       closed      open        open        open

       IRQ12       open        open      closed       open        open

       IRQ11       open        open       open       closed       open

       IRQ10       open        open       open        open       closed

        MISCELLANEOUS TECHNICAL NOTES

  JP2 is factory configured - do not alter.