RC80 PROPIO V1.0

CAUTION! Very preliminary - WORK IN PROGRESS - UNDER CONSTRUCTION

Objective: Migrate the PropIO 2.01 board to RC2014 environment employing a "bus compatible" RC80 bus.

The baseline "parent" design and the relevant Propellor Firmware can be found here:
https://www.retrobrewcomputers.org/doku.php?id=boards:ecb:propio:start

And the baseline "parent" design derives software support from here:
https://www.retrobrewcomputers.org/doku.php?id=software:firmwareos:romwbw:start
It is expected that this board design may be 100% compatible with the RomWBW support
already established for the "parent" design.

Many thanks to the original designers!

2020/07/11 - created first attempt at routing the board. It is crowded 100mm x 75mm so far.
Standard RC2014 is about 100 x 49. We are not constrained to that profile.
*Have not replaced 74682 with 74688 - see V2.0 separate design.