Implementation of the CoCo Five


The best way to implement a CoCo 5 as described in these web pages is an open question.  So this is just some musings about the pros and cons of various implementation options.


The original 1994 CoCo4 Idea would have involved three real 6309 CPU's

The most likely candidate for most of the hardware would be some type of FPGA chip it is possible that multiple FPGA chips and also maybe a real 6309 CPU might be involved I definitely know of 6809 cores but I am not sure that 6309 cores exist. The GPU might be among the most difficult parts to create as it deals with 32 bit data at least an 8MB address space and a high clock rate on the other hand beyond backwards compatibility with the GIMEx  much of the implementation would be free of legacy restrictions compared to other parts of the CoCo 5.

Another issue with Implementation is that there are two ways to go.

  1. Integrated
     
    to keep things as one piece with everything on a single motherboard:
  2. Modular
      to build the system as a modular system:

    Please