Original GITHUB: https://github.com/Bluelavasystems/XT-IDE-CF-MINI

XT-CF-Mini Rev1.1 ReadMe

8-bit ISA CompactFlash interface + Boot ROM (two separate functions that can be used individually).

Documentation for the switches can be found on the rear silkscreen. More ROM I/O addresses are possible than the information on the silkscreen. See below.

Credit:

Design uses schematic from Sergey Kiselev, with a few small changes to switches 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).

Further documentation:

SW1 - ON: ROM Enabled; OFF: ROM Disabled

SW2 - ON: EEPROM Write Enabled; OFF: EEPROM Write Disabled

SW3 - ROM I/O Port:

123 ROM

111 C0000

111 C2000*

110 C4000

110 C6000*

101 C8000

101 CA000

100 CC000

100 CE000*

011 D0000 < Default

011 D2000*

010 D4000

010 D6000*

001 D8000

001 DA000*

000 DC000

000 DE000*

111 E0000**

111 E2000***

110 E4000**

110 E6000***

101 E8000**

101 EA000***

100 EC000**

100 EE000***

011 F0000**

011 F2000***

010 F4000**

Settings marked with asterisks require solder-jumpers to be opened:

Settings marked with * require JP1 to be opened.

Settings marked with ** require JP2 to be opened.

Settings marked with *** require both JP1 and JP2 to be opened.

Settings marked with no *, are set with the three DIP switches, and require JP1 and JP2 to be closed.\

Make sure that selected I/O and EEPROM addresses do not conflict with other devices.

Addresses 0xC0000 - 0xC6000 will conflict with EGA/VGA BIOS extension.

Addresses 0xC8000 - 0xCA000 might conflict with XT Hard Disk BIOS extension.

Addresses 0xE0000 and up might conflict with system BIOS on newer motherboards.

It is recommended to disable EEPROM write once XT IDE BIOS extension is programmed and configured.

SW4 - IDE I/O Port:

123 IDE

111 300 < Default

011 320

101 340

001 360

110 380

010 3A0

100 3C0

000 3E0

The A8 line is provided as a solder-jumper JP3, and should change the first digit of the IDE I/O Port from 3 to 2 (so 300 becomes 200, 3C0 becomes 2C0, etc). This is untested at present.\