Great Plains Electronics

W65C02S MPU running at 8MHz.

External Memory Bus with 32KBytes SRAM, 128KBytes FLASH ROM (32PLCC Socket) mapped as upper 32KB of Memory Map with overlays off of 2 IO pins from W65C22 TIDE (VIA2) Port.

2 x W65C22N VIA with one VIA Expansion Port, 1 x W65C21 PIA with PIA Expansion Port, 1 x W65C51N ACIA with ACIA Expansion Port

USB Programming port

Powered by micro USB connector (cable not included).