Reverse engineering the Rockwell A4821 processor driving the Unisonic 21 calculator/game
KiCad
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
.gitattributes
.gitignore
PPS-4_Data_Sheet_1974.pdf
Unisonic21-cache.lib
Unisonic21.kicad_pcb
Unisonic21.pro
Unisonic21.sch
a_amp.sch
b_xor_c_amp.sch
bootstrap inverter.sch
clock-phase-generator-section-logical.pdf
clock-phase-generator-section.pdf
clockgen-logic.sch
clockgen.sch
mos.dcm
mos.lib
oscillator-section.pdf
oscillator.sch
strobe.sch