8-bit ISA CompactFlash interface + Boot ROM (two separate functions that can be used individually).
Design uses schematic from Monotech-PC, which, in turn, is based on the schematic from Sergey Kiselev:
https://github.com/monotech/monotech_xt-cf-mini http://www.malinov.com/Home/sergeys-projects/xt-cf-lite
XT-IDE Universal BIOS
www.xtideuniversalbios.org
www.xtideuniversalbios.org/binaries
Use the latest working binary that includes XTIDECFG.COM (config utility), ide_xt.bin (8086/8088), ide_xtp.bin (80186/V20/V30 and up).
More info:
https://www.tindie.com/products/spark2k06/micro-xtcf-isa-8-bits-very-low-profile/