ADVANCED MICROCOMPUTER SYSTEMS, INC.

SUPER I/O-21

Card Type                 Multi I/O
Chipset Controller        Unidentified
I/O Options               Serial port(2), parallel port via DB-37
                          intermediate connector
Maximum DRAM              N/A

[Image]

                                CONNECTIONS

       Purpose           Location           Purpose           Location

  Serial port 1 & 2,        CN1         Not used                CN2
  parallel port

                                        SERIAL PORT 1 INTERRUPT

  IRQ   J5/1     J5/2     J5/3     J5/4     J5/5    J5/6     J5/7     J5/8     J5/9    J5/10    J5/11

  2     Closed   Open     Open     Open     Open    Open     Open     Open     Open     Open     Open

  3     Open    Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open

  4     Open     Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open

  5     Open     Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open

  6     Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

  7     Open     Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open

  10    Open     Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open

  11    Open     Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open

  12    Open     Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open

  14    Open     Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open

  15    Open     Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed

       Note: Interrupt settings for J5 shown. J6 uses an identical configuration. J5 affects serial
       port 1 and J6 affects serial port 2

                      SERIAL PORT CONFIGURATION

   Port 1     Port 2       J4/1       J4/2        J4/3       J4/4

    COM2       COM4        Open      Closed       Open      Closed

    COM1       COM3       Closed      Open       Closed      Open

    COM3       COM4        Open       Open       Closed     Closed

    COM2       COM3        Open      Closed      Closed      Open

    COM1       COM2       Closed     Closed       Open       Open

  Disabled     COM4        Open       Open        Open      Closed

  Disabled     COM3        Open       Open       Closed      Open

    COM2      Disabled     Open      Closed       Open       Open

    COM1      Disabled    Closed      Open        Open       Open

  Disabled    Disabled     Open       Open        Open       Open

             PARALLEL PORT INTERRUPT

   IRQ      J1/1      J1/2      J1/3      J1/4

    2      Closed     Open      Open      Open

    5       Open     Closed     Open      Open

    6       Open      Open     Closed     Open

    7       Open      Open      Open     Closed

          PARALLEL PORT CONFIGURATION

   Port 1      J3/1        J3/2        J3/3

    LPT1      Closed       Open        Open

    LPT1       Open       Closed       Open

    LPT3       Open        Open       Closed

  Disabled     Open        Open        Open

  FACTORY CONFIGURED SETTINGS

     Jumper         Setting

     J2/1-4         Not used

    J7/1-11         Not used

    J8/1-11         Not used