
NEC TECHNOLOGIES, INC.

FD850MEX (CDXT003FD)

Card Type               Hard drive controller
Hard Drives supported   Up to 7 SCSI devices
Floppy drives supported None
Data Bus                8-bit ISA
Card Size               Half-length, full-height

[Image]

                                CONNECTIONS

         Function             Label            Function            Label

  50-pin SCSI connector -      J2      25-pin SCSI connector -      P1
  internal                             external

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Zero wait state disabled                 W5              Open

      Zero wait state enabled                  W5             Closed

                         MEMORY ADDRESS SELECTION

       Setting               W1              W2                W3

         CA000h            Open            Open        Pins 1 & 2, 3 & 4
                                                             closed

          C8000h           Closed           Open        Pins 1 & 2, 3 & 4
                                                             closed

          CE000h            Open           Closed       Pins 1 & 2, 3 & 4
                                                             closed

          DE000h           Closed          Closed       Pins 1 & 2, 3 & 4
                                                             closed

          E8000h            Open            Open        Pins 1 & 3, 2 & 4
                                                             closed

          EC000h            Open           Closed       Pins 1 & 3, 2 & 4
                                                             closed

                 INTERRUPT SELECTION

     Setting        W6(pins 1 & 2)   W7(pins 2 & 3)

  IRQ3                 Closed             Open

  IRQ5                  Open             Closed

