The Amiga, like many other computers of the late 80s, uses 16-bit wide mask ROMs to store the machine firmware. Unfortunately, the pinout of these ROMs is incompatible with the JEDEC defined EPROM pinout. Memory manufacturers produced "ROM compatible" EPROMS like the 27C400 to allow development and quick turn manufacturing. These EPROMS are however becoming quite hard to find and still require a UV lamp to erase the chips. F2R16 brings all the benefits of modern flash memory technology to any platform designed to use these obsolete devices.
The design is pretty straight forward. It uses a 2-8Mbit TSOP-I flash device of the 29Fxxx series and adapts it to the 27Cxxx pinout. WE# and RST# which do not exist in the 27Cxxx pinout are wired to a header to allow programming on a TL866 using the F2R16-PROG adapter.
When using a 29F800 flash ROM, A18 can be used to select the active 512KB bank (useful for dual kickstart configurations)