
DIAMOND FLOWER, INC.

MU-440

Card Type          Serial controller
Chipset/Controller Unidentified UART
I/O Options        Serial I/O ports (4)
Maximum DRAM       N/A

[Image]

                            CONNECTIONS

     Purpose         Location         Purpose         Location

  Serial port 3         J1         Serial port 2         J3

  Serial port 4         J2         Serial port 1         J4

                      COMPATIBLE MODE ADDRESS SELECT

   Port 1    Port 2     Port 3    Port 4     SW1/1     SW1/2      SW1/3
   (J4)       (J3)      (J1)       (J2)

   3F8h       2F8h      3E0h       3E8h       Off       Off        Off

   3F8h       2F8h      2B0h       2B8h       On        Off        Off

   3F8h       2F8h      1B0h       1B8h       Off        On        Off

                       EXPANDED MODE ADDRESS SELECT

   Port 1    Port 2     Port 3    Port 4     SW1/1     SW1/2      SW1/3
   (J4)       (J3)      (J1)       (J2)

   280h       288h      290h       298h       On         On        Off

   3E0h       3E8h      2E0h       2E8h       Off       Off         On

   2A0h       2A8h      2B0h       2B8h       On        Off         On

   1A0h       1A8h      2A0h       2A8h       Off        On         On

                             INTERRUPT SELECT

       IRQ          SW1/4      SW1/5      SW1/6       SW1/7       SW1/8

       IRQ5         Off        Off        Off         On          Off

        IRQ2         On         Off        Off         Off         Off

        IRQ3         Off        On         Off         Off         Off

        IRQ4         Off        Off         On         Off         Off

        IRQ7         Off        Off        Off         Off         On

                  PRIMARY PORT NORMAL/FORCED TRUE SELECT

     Setting             JP7/A             JP7/B              JP7/C

      Normal           Pins 1 & 2        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

   Forced True         Pins 2 & 3        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

  PRIMARY PORT DTE/DCE SELECT

           Jumper JP8

      DTE             DCE

  [Image]         [Image]

                   SECOND PORT NORMAL/FORCED TRUE SELECT

     Setting             JP6/A             JP6/B              JP6/C

      Normal           Pins 1 & 2        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

   Forced True         Pins 2 & 3        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

  SECOND PORT DTE/DCE SELECT

          Jumper JP5

      DTE            DCE

  [Image]        [Image]

                   THIRD PORT NORMAL/FORCED TRUE SELECT

     Setting             JP1/A             JP1/B              JP1/C

      Normal           Pins 1 & 2        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

   Forced True         Pins 2 & 3        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

  THIRD PORT DTE/DCE SELECT

          Jumper JP3

      DTE            DCE

  [Image]        [Image]

                   FOURTH PORT NORMAL/FORCED TRUE SELECT

     Setting             JP2/A             JP2/B              JP2/C

      Normal           Pins 1 & 2        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

   Forced True         Pins 2 & 3        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

  FOURTH PORT DTE/DCE SELECT

          Jumper JP4

      DTE            DCE

  [Image]        [Image]

