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SC402

Card Type              Tape drive controller
Chip Set               Unidentified
Maximum Onboard Memory Unidentified
I/O Options            1/4 inch cartridge tape drive
Tape Format            QIC 11, QIC 24
Data Bus               8-bit ISA

[Image]

                                CONNECTIONS

          Function            Label            Function            Label

  Tape drive connector -       J2      Tape drive connector -       J3
  external                             internal

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

  »   Factory configured - do not alter           RR           Open

                           DMA CHANNEL SELECTION

  Channel       JP6       JP5       JP4        JP3       JP2       JP1

  »     1     Closed      Open      Open     Closed     Open       Open

        2      Open      Closed     Open      Open     Closed      Open

        3      Open       Open     Closed     Open      Open      Closed

                        BASE I/O ADDRESS SELECTION

  Setting     CMP3   CMP4    CMP5   CMP6    CMP7   CMP8     CMP9   CMP10

       0h     On      On     On      On      On     On      On       On

       8h     Off     On     On      On      On     On      On       On

      10h     On     Off     On      On      On     On      On       On

      18h     Off    Off     On      On      On     On      On       On

      20h     On      On     Off     On      On     On      On       On

  »   200h    On      On     On      On      On     On      Off      On

      3D8h    On      On     Off     On      On     On      On       On

      3E0h    Off    Off     On      On      On     On      On       On

      3E8h    On     Off     On      On      On     On      On       On

      3F0h    Off     On     On      On      On     On      On       On

      3F8h    On      On     On      On      On     On      On       On

                                   Note:

  A total of 128 base address settings are available. The jumpers are a
  binary representation of the decimal memory addresses. Jumper CMP9 is
  the Most Significant Bit and jumper CMP3 is the Least Significant Bit.
  The jumpers have the following decimal values: CMP9=512, CMP8=256,
  CMP7=128, CMP6=64, CMP5=32, CMP4=16, CMPA3=8. Jumper CMP10 is always
  on. Turn off the jumpers and add the values of the jumpers and convert
  to hexadecimal to obtain the correct memory address. (Off=1, On=0)

                            INTERRUPT SELECTION

     IRQ        JP7        JP8       JP9      JP10      JP11       JP12

      IRQ2      Open      Open      Open      Open      Open      Closed

  »   IRQ3      Open      Open      Open      Open     Closed      Open

      IRQ4      Open      Open      Open     Closed     Open       Open

      IRQ5      Open      Open     Closed     Open      Open       Open

      IRQ6      Open     Closed     Open      Open      Open       Open

      IRQ7     Closed     Open      Open      Open      Open       Open

                             DIAGNOSTIC LED(S)

  Note: The function of the LEDs is unidentified, however on power up or
  reset all LEDs will light up. When the reset or self test is completed
  the LEDs will turn off.