The "X-Modul" adds a RS-232 interface to -X drives.
== Technical Details == I/O Ports ====
=FADC/FADD: Serial data and controlFBDC/FBDD/FBDF: Counter 0/1/Mode So it's probably compatible with Amstrad/Pace (and probably also including, but not using, channel B ports FADE/FADF and FBDE). == Vortex Disk Format ===
See [[VDOS]]
=== I/O Ports ===
'''Standard addresses (same as used by AMSDOS)'''
So, not sure if/when the Special addresses are used at all?
'''RS232 Ports (for -X drives with RS232)'''
FADC/FADD=Serial Data/Control
FBDC/FBDD/FBDF=Counter 0/1/Mode.
So it's probably compatible with Amstrad/Pace (and probably also including, but not using, channel B ports FADE/FADF and FBDE).
== Manuals ==
