RANCHO TECHNOLOGY, INC.

RT10-AT

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Up to seven SCSI devices

Floppy drives supported: None

[Image]

                   CONNECTIONS

             Function                Location

  50-pin SCSI connector-internal        J1

  50-pin SCSI connector-external        J2

                              I/O PORT ADDRESS

  Address    W1/1     W1/2     W1/3    W1/4   W1/5     W1/6   W1/7   W1/8*

  »   340h  closed   closed   closed   open   closed   open   open   closed

      348h   open    closed   closed   open   closed   open   open   closed

      350h  closed    open    closed   open   closed   open   open   closed

      358h   open     open    closed   open   closed   open   open   closed

      360h  closed   closed    open    open   closed   open   open   closed

      Note * Open disables Port Address

                               BIOS ADDRESS

   Address      W2/1     W2/2     W2/3      W2/4       W2/5       W2/6*

  »   D000h     pins 1   pins 2   pins 2   closed      open      closed
                 & 2      & 3      & 3

      D400h     pins 1   pins 2   pins 1   closed      open      closed
                 & 2      & 3      & 2

      D800h     pins 1   pins 2   pins 2    open       open      closed
                 & 2      & 3      & 3

      DC00h     pins 1   pins 2   pins 1    open       open      closed
                 & 2      & 3      & 2

      C000h     pins 1   pins 2   pins 2   closed     closed     closed
                 & 2      & 3      & 3

      C400h     pins 1   pins 2   pins 1   closed     closed     closed
                 & 2      & 3      & 2

      C800h     pins 1   pins 2   pins 2    open      closed     closed
                 & 2      & 3      & 3

      CC00h     pins 1   pins 2   pins 1    open      closed     closed
                 & 2      & 3      & 2

  Note:Pins designated should be in the closed position.

  * Open disables BIOS Address

                 INTERRUPT REQUEST (BUS MASTER)

    IRQ       W6/9       W6/10      W6/11      W6/12     W6/13

   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

                                 ROM SIZE

        ROM Size              W3/pins 2 & 3            W3/pins 4 & 5

  BIOS ROM size is 8KB             open                     open

  BIOS ROM size is 16KB           closed                    open

  BIOS ROM size is 32KB           closed                   closed

                            DMA CHANNEL (HOST)

    Channel        W4/jumpers 7 &     W4/jumpers 8 &    W4/jumpers 9 & 12
                         10                 11

       1               closed              open               open

       2                open              closed              open

       3                open               open              closed

                      INTERRUPT REQUEST (HOST)

   IRQ      W4/1      W4/2     W4/3      W4/4      W4/5      W4/6

   IRQ3     closed    open     open      open      open      open

   IRQ4     open     closed    open      open      open      open

   IRQ5     open      open     closed    open      open      open

   IRQ6     open      open     open      closed    open      open

   IRQ7     open      open     open      open     closed     open

   IRQ9     open      open     open      open      open     closed

                   READ PORT CONFIGURATION JUMPERS - JP5

     Setting        D0        D1       D2        D3       D4        D5

  Address is       open      open      N/A      N/A       N/A       N/A
  340h

  Address is       closed    open      N/A      N/A       N/A       N/A
  328h

  Address is       open     closed     N/A      N/A       N/A       N/A
  310h

  Address is       closed   closed     N/A      N/A       N/A       N/A
  300h

  RAM address.      N/A      N/A      open      N/A       N/A       N/A
  is 0:4B0h

  RAM address.      N/A      N/A      closed    N/A       N/A       N/A
  is 0:300h

  Data transfer     N/A      N/A       N/A      open     open       N/A
  polled I/O

  DREQ5/DACK5       N/A      N/A       N/A     closed    open       N/A
  (HS)

  DREQ6/DACK6       N/A      N/A       N/A      open     closed     N/A
  (HS)

  DREQ3/DACK3       N/A      N/A       N/A     closed    closed     N/A

  Parity,           N/A      N/A       N/A      N/A       N/A      open
  Inquiry &
  Verify Cmd.
  enabled

  Parity,           N/A      N/A       N/A      N/A       N/A     closed
  Inquiry &
  Verify Cmd.
  disabled

                   DMA CHANNEL (BUS MASTER) JUMPERS - W6

    Channel      Jumpers 1 &    Jumpers 2 &   Jumpers 3 &     Jumpers 4 &
                     5              6              7              8

       7           closed          open          open            open

       6            open          closed         open            open

       5            open           open         closed           open

       0            open           open          open           closed