A BIOS / firmware dump. Shared as “MITASHI-MIC22V01(1).BIN.enc” — a .enc file, 512 KB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @hashmielecom. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →