DIAMOND FLOWER, INC.

DIAMOND I/O

Card Type          Multi I/O
Chipset/Controller National Semiconductor
I/O Options        Parallel port, serial ports (2)
Maximum DRAM       N/A

[Image]

                            CONNECTIONS

        Purpose          Location         Purpose          Location

  Serial port 1            J1       Parallel port            J3

  Serial port 2            J2

                         SERIAL PORT CONFIGURATION

   Port 1 (J1)         Setting         SW1/switch 3       SW1/switch 6

  »      COM1          Enabled              On                 Off

         COM3         Disabled             Off                 On

                         SERIAL PORT CONFIGURATION

   Port 2 (J2)         Setting         SW1/switch 4       SW1/switch 7

  »      COM2          Enabled              On                 Off

         COM4         Disabled             Off                 On

                      SERIAL PORT INTERRUPT SELECTION

  Port 1 (J1)     Port 2      SW2/1       SW2/2       SW2/3       SW2/4
                   (J2)

  »     IRQ4       IRQ3         On         Off         On          Off

        IRQ3       IRQ4        Off         On          Off         On

               SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION

      Port 1           Port 2             J4                   J5

  »      Normal        Normal       Pins 2 & 3, 5 &    Pins 2 & 3, 5 & 6,
                                    6, 8 & 9 closed       8 & 9 closed

       Forced True   Forced True    Pins 1 & 2, 4 &    Pins 1 & 2, 4 & 5,
                                    5, 7 & 8 closed       7 & 8 closed

          SERIAL PORT'S DTE/DCE CONFIGURATION

   Primary serial port J1    Secondary serial port J2

         Jumper J6                   Jumper J7

  [Image]                    [Image]

                          PARALLEL PORT SETTINGS

         LPT                 SW1/switch 1              SW1/switch 5

  »          1                    On                        Off

             2                   Off                        On

                         PARALLEL PORT INTERRUPTS

          IRQ                 SW2/switch 5              SW2/switch 6

  »         IRQ7                   On                       Off

            IRQ5                   Off                       On

                            CLOCK CONFIGURATION

                 Clock                            SW1/switch 2

  »               Enabled                              On

                 Disabled                              Off

                          CLOCK INTERRUPT SELECT

          IRQ                 SW2/switch 7              SW2/switch 8

  »         IRQ2                   Off                       On

            IRQ5                   On                       Off