# MAX80: ABC Bus

# ABC Bus

Host system
Host system type
Autodetect ABC80 ABC800C/M ABC802/806

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

If MAX80 is used in a Luxor expansion box ABC for ABC80, the expansion box needs to be rejumpered to support external memories on the I/O side of the box.
See manual.

Emulated disk controllers
MO floppy
Enabled: Device select: (45)

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

MF floppy
Enabled: Device select: (44)

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

SF floppy
Enabled: Device select: (46)

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

HD winchester
Enabled: Device select: (36)

15232K emulated winchester drive

XD winchester
Enabled: Device select: (37)

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

PUN80 network
Bus configuration
Enabled: Device select: (60)
Network server :

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

Other devices
Real time clock
Enabled: Device select: (54)
Reset when updating configuration Reset MAX80 Reset ABC