UNIDENTIFIED

PIO-III

Card Type          Multi-I/O
Chipset/Controller Unidentified
I/O Options        Game port, Parallel port, Serial ports (2)
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

       Purpose          Location            Purpose            Location

  Game port                CN1        Serial port 2              CN4

  Parallel port            CN2        Control cable              CN4
                                      connector - floppy
                                      drive

  Serial port 1            CN3

              CLOCK ADDRESS

       Address               JP3

        » 240h        Pins 2 & 3 closed

        340h          Pins 1 & 2 closed

             CLOCK INTERRUPT

       Setting               JP6

      » Enabled       Pins 1 & 2 closed

      Disabled        Pins 2 & 3 closed

                  SERIAL PORTS 1 & 2 INTERRUPT SELECT

      Port 1             Port 2              JP7               JP8

      » IRQ4              IRQ3            Pins 1 & 2        Pins 2 & 3
                                           closed             closed

       IRQ3               IRQ4            Pins 2 & 3        Pins 1 & 2
                                           closed             closed

       IRQ3             Disabled        All pins open       Pins 1 & 2
                                                              closed

       IRQ4             Disabled        All pins open       Pins 2 & 3
                                                              closed

     Disabled             IRQ3            Pins 1 & 2      All pins open
                                           closed

                  SERIAL PORTS 1 & 2 INTERRUPT SELECT

      Port 1              Port 2              JP7               JP8

     Disabled              IRQ4            Pins 2 & 3      All pins open
                                             closed

     Disabled            Disabled        All pins open     All pins open

                  SERIAL PORTS 1 & 2 INTERRUPT SELECT

      Port 1           Port 2              J3                  J4

      » IRQ4            IRQ3           Pins 2 & 3       Pins 1 & 2 closed
                                         closed

       IRQ3             IRQ4           Pins 1 & 2       Pins 2 & 3 closed
                                         closed

                   SERIAL PORT 1 & 2 CONFIGURATIONS

    PORT 1         PORT 2         SW1/1          SW1/2          SW1/3

  » COM1/3F8h    COM2/2F8h          On            On             On

   COM1/3F8h     COM3/2E8h         Off            On             On

   COM1/3F8h     COM4/3D8h          On            Off            On

   COM2/2F8h     COM3/2E8h         Off            Off            On

   COM2/2F8h     COM4/3D8h          On            On             Off

   COM3/2E8h     COM4/3D8h         Off            On             Off

   Disabled       Disabled          On            Off            Off

   Disabled       Disabled         Off            Off            Off

        PARALLEL PORT CONFIGURATION

  LPT/Address     SW1/4          SW1/5

  » LPT1/378h      On             On

   LPT2/278h       Off            On

   LPT3/3BCh       On             Off

   Disabled        Off            Off