A BIOS / firmware dump. Shared as “Hitachi-CPT2050.hex” — a .hex file, 733 B.
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 @tvsoftwareworld. 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 →