OPTIVISION, INC.

MPEG-1 VGA DECODER

Card Type                   MPEG decoder
Video Chip Set              Unidentified
Maximum Playback Supported  720 x 480 (NTSC), 720 x 576 (PAL)
Highest Resolution          1024 x 768
Supported
Maximum Video Memory        None
Data Bus                    16-bit ISA
Video Types Supported       XVGA

[Image]

                                CONNECTIONS

          Function             Label            Function            Label

  VGA out                       CN1     Composite video out          J1

  VGA feature connector         CN2     Audio out                    J2

  S-video out                   CN3

                        BASE I/O ADDRESS SELECTION

  Setting   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

      000h   On      On      On      On      On      On      On      On

      004h   Off     On      On      On      On      On      On      On

      008h   On      Off     On      On      On      On      On      On

      00Ch   Off     Off     On      On      On      On      On      On

      010h   On      On      Off     On      On      On      On      On

  »   208h   On      Off     On      On      On      On      On     Off

      3ECh   Off     Off     On      Off    Off     Off     Off     Off

      3F0h   On      On      Off     Off    Off     Off     Off     Off

      3F4h   Off     On      Off     Off    Off     Off     Off     Off

      3F8h   On      Off     Off     Off    Off     Off     Off     Off

      3FCh   Off     Off     Off     Off    Off     Off     Off     Off

            Note:A total of 255 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW1/8 is the Most Significant Bit and switch SW1/1
            is the Least Significant Bit. The switches have the following
            decimal values: SW1/8=512, SW1/7=256, SW1/6=128, SW1/5=64,
            SW1/4=32, SW1/3=16, SW1/2=8, SW1/1=4. Turn off the switches
            and add the values of the switches to obtain the correct
            memory address. (Off=1, On=0)