Hey Gad,
The GR8 will be a low speed version of the GR8A:
- GR8 typically for 32kHz quartz
- GR8A for above 1MHz. (like GZ)
If you work by hand, you can use any because register map is similar/compatible.
May be it could create some difficulties with Processor Expert because it would check the range of multipliers and all.
You're right about the differences GR doesn't have an msCAN module as on GZ.
Anyway, I'm surprised CW doesn't include it.
Cheers,
Alban.