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NESizer2
NES 2A03 chip controlled by ATmega328 with battery backed patch memory
  • Chiptune
  • Digital
  • AVR
  • MIDI

The 2A03 IC consists of a 6502 CPU core (with some minor changes), a DMA controller and the Audio Processing Unit. The APU is controlled via 22 registers, which are connected internally to the 6502 only; there are no external input pins facilitating communication with the APU directly.

Johan Fjeldtvedt
Advanced
  • +Schematic
  • +PCB source
  • -Gerbers
  • +BOM
  • +FW
  • +Docs
  • -Enclosure