RealCoCo Quick Reference

TRS-80/Tandy Color Computer 3 FPGA Clones by Roger Taylor

  • Custom GIME implementation designed from the ground up
  • The most accurate CoCo clones available
  • Virtal floppy disks and hard drives via CyloneSDC/WD1793 FDC hybrid controller
  • Up to 2MB CoCo RAM with FPGA boards that have an SDRAM chip
  • Up to 128KB program paks with FPGA boards that have an SDRAM chip
  • Analog joystick, game controller support, PS/2 and USB mouse depending on motherboard
  • Auto-sensing Tandy Hi-Res adapter and CoCoMax III adapter
  • Orchestra-90CC (stereo 8-bit DAC sound)
  • AY-3 sound chip (3-voice synthesizer, stereo)
  • MIDI Pak + synthesizer (4-voice, stereo) (work in progress)
  • Cassette deck support depending on motherboard
  • CPU throttle and turbo modes for up to ~8Mhz operation
  • Not derived in any fashion from the botchy coco3fpga project

See me on Patreon for full support

>>> Proposed hardware registers and programming specs <<<

Matchbox CoCo (Self-contained clone)

MiSTer CoCo (MiST family, OSD-driven)

MiST CoCo (MiST family, OSD-driven)

Sidi CoCo (MiST family, OSD-driven)


Author: Roger Taylor