Game Cartridge Pinout (Sega Mega Drive) Updated Mar 15, 2026 · 1 min read · 0 viewing Previous Audio Circuit (Sega Mega Drive) Depending on the version of Mega Drive the audio circuit is slightly different, but the overall desi... Next CXA Video Encoder (Sega Mega Drive) The video encoding for generating composite and RGB video data from the VDP chip is the CXA1145 vide...