Fantasy computer based on 6809 cpu

• CPU: 6809 @ 1.7734475

• ROM: 16KB

• RAM: 64KB

• Video:

  • Mode 0: 288x200 bitmap with 36x25 16 color (from 64) overlay, in square 8x8 pixels two colors from 16 are given by overlay (double buffer capability)
  • Mode 1: 144x100 bitmap with 16 colors (from 64) (double buffer capability)
  • 16 color LUT for pixel area + 1 color LUT for border area. Entry in LUT is mapped to RRGGBB (64 colors)

• Audio:

  • Custom 4 channel PSG with editable wave form, 8 volume levels. Any channels can be switched to noise mode
  • Output to internal speaker or stereo 3.5 mm jack

• I/O

  • Keyboard with 56 keys (matrix 8x7)
  • 2 x DIN connector for two seven button gamepads
  • Tape in/out connector
  • TV out
  • Analog (4 level) RGB + Composite video (DIN connector)
  • Edge connector
  • Centronics parallel port

• Video/Audio provided by single 40-pin ASIC

• I/O provided by 6821