DATA TECHNOLOGY CORPORATION

DTC5280DL

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two MFM ST506/412 drives

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

Sector Interleave: 2:1

[Image]

                            CONNECTIONS

                   Function                          Location

  34-pin control cable connector-floppy drive           J1

  34-pin data cable connector-hard drive                J2

  20-pin data cable connector-drive 0                   J3

  20-pin data cable connector-drive 1                   J4

  4-pin connector-drive active LED                      J5

                        USER CONFIGURABLE SETTINGS

                 Function                     Location         Setting

  »   Factory configured - do not alter          JP1            open

  »   Port addresses are 1F0-1F7 and             JP2            open
      3F2-3F7h

      Port addresses are 170-177 and             JP2           closed
      372-377h

  »   Factory configured - do not alter          JP3            open

  »   Floppy drive precompensation is            JP4          pins 1 & 2
      scaled by data rate:500khz=125ns,                         open
      300KHz=208ns, 50KHz=250ns

      Floppy drive precompensation is            JP4          pins 1 & 2
      125ns                                                    closed

  »   Drive 0 is a single speed floppy           JP4          pins 3 & 4
      drive                                                    closed

      Drive 0 is a dual speed floppy             JP4          pins 3 & 4
      drive                                                     open

  »   Drive 1 is a single speed floppy           JP4          pins 5 & 6
      drive                                                    closed

      Drive 1 is a dual speed floppy             JP4          pins 5 & 6
      drive                                                     open

                        FLOPPY DRIVE CONFIGURATION

              Function                    Location            Setting

  »   Floppy drive 0 uses standard           JP5             pins 4 & 6
      logic                                                   closed

      Floppy drive 0 uses reverse            JP5             pins 2 & 4
      logic                                                   closed

  »   Floppy drive 1 uses standard           JP5             pins 3 & 5
      logic                                                   closed

      Floppy drive 1 uses reverse            JP5             pins 1 & 3
      logic                                                   closed