EFI - External Floppy Interface for Amiga

External floppy drive adapter (DF1) for Amiga computers.

Suitable for internal Amiga floppy drives, Gotek and PC floppy drives as well as miniADF.

Many different modes can be set via the 4 jumpers:

J1 - responsible for the READY signal. If connecting an unononverted floppy from a PC, the jumper should be set to position 1-2 (READY signal will be generated based on SELx and INDEX signals). Setting the jumper in position 2-3 will cause that the READY signal will be read directly from pin 34 floppy disk drives (Amiga or from the PC).

J2 - responsible for the DISK CHANGE signal. If you connect an unconverted station from a PC, then the jumper should be set:

• in position 1-2 (the DISK CHANGE signal will be read directly from pin 34 of the station). Jumper setting
• in position 2-3, the DISK CHANGE signal will be read directly from pin 2 of the floppy disk drive (Amiga or converted from PC).

J3 - responsible for the SELx activation signal, which must reach the station. Most floppy disk drives have a jumper to select the station number (DS0 or DS1). Depending on the station number set, the SELx signal must be given to the appropriate station pin. If the station is set to DS1 (unconverted stations from PC and stations without jumper to select the number), then J3 jumper must be set in position 1-2 (SELx signal will go to pin 12 stations).

If the station is set to DS0 (Amiga or converted from PC), the J3 jumper must be set in position 2-3 (SELx signal will go to pin 10 of the station).

J4 - used to select the floppy disk number under which it will be visible in the Boot Menu and in the system operational AmigaDOS / Workbench. This number depends on the jumper position: DFx Select 1= DF1, 2= DF2, 3= DF3

Only in the case of the Amiga CDTV it is different: DFx 1 = DF0, 2 = DF1, 3 = DF2.