ATI TECHNOLOGIES, INC.

EGA WONDER (VER.2.3)

Card Type                   Video card
Video Chip Set              Unidentified
Highest Resolution          800 x 560
Supported
Maximum Video Memory        256KB RAM
Data Bus                    8-bit ISA
Video Types Supported       EGA

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  9-pin digital video         CN1      PC portable connector       CN4
  port & TTL monitor

  Feature connector           CN2      Composite monitor           J1
                                       connector

  Light pen connector         CN3      Composite monitor           J2
                                       connector

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

  »   Port address is 3XXh                        P6         Pins 2 & 3
                                                              closed

      Port address is 2XXh                        P6         Pins 1 & 2
                                                              closed

  »   Video clock connected to on board           P7         Pins 1 & 2
      25.175mHz oscillator                                    closed

      Video clock connected to EXTOSC from        P7         Pins 2 & 3
      feature connector                                       closed

  »   Pin 8 on DB9 connector (CN1) to             P8         Pins 1 & 2
      Horizontal sync.                                        closed

      Pin 8 on DB9 connector (CN1) to             P8         Pins 2 & 3
      Composite sync.                                         closed

  »   Composite signal sent to J1 is              P9         Pins 2 & 3
      enabled                                                 closed

      Composite signal sent to J1 is              P9         Pins 1 & 2
      disabled & J1 is connected to CN2                       closed

  »   "EGA Wonder" enhanced features            SW1/8           On
      enabled

      "EGA Wonder" enhanced features            SW1/8           Off
      disabled

  Note: When using a Taxan 650 type 25 kHz monitor you must set jumper
  P8/pins 2 & 3 closed.

                    EGA-MDA DUAL DISPLAY CONFIGURATION

  Primary Display       EGA Wonder

     Secondary             MDA
     Display

     Setting              SW1/1            SW1/2      SW1/3       SW1/4

  CGA (40 x 25)             On              Off        Off         On

  CGA (80 x 25)            Off              Off        Off         On

   EGA (Normal)             On               On         On         Off

  EGA (Enhanced)           Off               On         On         Off

                    MDA-EGA DUAL DISPLAY CONFIGURATION

  Primary Display          MDA

     Secondary          EGA Wonder
     Display

     Setting              SW1/1            SW1/2      SW1/3       SW1/4

  CGA (40 x 25)             On               On         On         On

  CGA (80 x 25)            Off               On         On         On

   EGA (Normal)             On              Off         On         On

  EGA (Enhanced)           Off              Off         On         On

                    MDA-CGA DUAL DISPLAY CONFIGURATION

     Primary      EGA Wonder configured
    Display              as MDA

    Secondary              CGA
    Display

    Setting               SW1/1             SW1/2      SW1/3      SW1/4

  CGA (40 x 25)            On                Off        On         Off

  CGA (80 x 25)            Off               Off        On         Off

                    CGA-MDA DUAL DISPLAY CONFIGURATION

     Primary               CGA
    Display

    Secondary     EGA Wonder configured
    Display              as MDA

    Setting               SW1/1             SW1/2      SW1/3      SW1/4

  CGA (40 x 25)            On                On         Off        On

  CGA (80 x 25)            Off               On         Off        On

                          MONITOR TYPE SELECTION

         Type                SW1/5           SW1/6             SW1/7

      Multi-sync              On              Off               On

   Enhanced graphics          On              Off               Off

       RGB color              On               On               Off

    TLL monochrome            Off              On               Off

     25 kHz color             Off             Off               On

     Composite (PC            On               On               Off
       portable)

    Compaq Internal           Off             Off               Off

  Note: Settings must be set according to the type of monitor being used.

  When using a 25 kHz monitor jumper P8/pins 2 & 3 must be closed.

  When using a Compaq internal monitor you must use the optional Compaq
  module.