ABC Bus

Host system
Host system type

Autodetection can fail in some type of expansion boxes, possibly depending on jumpering.

Emulated disk controllers
MO floppy
(45)

40 track floppies (80-320K): ABC830, FD2, FD4, DD80, DD82, DD84, DD52, DD54

MF floppy
(44)

80 track floppies (640K): ABC832, DD12, DD56

SF floppy
(44)

8″ floppies: ABC838, DD8, DD88
Some older (non-UFD) DOS may need device select 44.

HD winchester
(36)

15232K emulated winchester drive

XD winchester
(37)

15232K emulated winchester drive (secondary controller)
Requires patched UFD-DOS device table.

PUN80 network
Bus configuration
(60)

The network server software is integrated with abc80sim version 3.7.5 or later.

Other devices
Real time clock
(54)
Reset when updating configuration