The original intent of Z80SBCRC is to design a very simple single-board Z80 computer to check out the handful of 20MHz Z80 chips I purchased off eBay. The design built on a Prototype for RC2014 board (https://github.com/Plasmode/ProtoRC) and added Z80 and SRAM and later a compact flash drive. All the logic are inside the existing EPM7128 CPLD on the prototype board. This is the link to the prototype page
Solder side picture of Z80SBCRC prototype.
Z80SBCRC prototype was layout as pc board. This is the link to the pc board

