Floppy controllers November 13, 2021 One-minute read floppy • electronic MFM Wikipedia MFM encoding http://www.retrotechnology.com/herbs_stuff/drive.html MMFM (M2FM) http://www.retrotechnology.com/herbs_stuff/m2fm.html Controllers classic 765 WD37C65C NatSemi uPD765 Zilog’s Z0765… NEC D765 NEC D765AC (CMOS) NEC D765AC Intel 8272 Intel 8272A (CMOS) Intel 82077AA CHMOS Datasheets Intel 82077SL Intel 82078 FD179x FD179x (1979) FD179x (1980) FD179x (app notes) FDC9216 - data separator WD57C65 uPD372 uPD372 (addendum) uPD765 (app notes) Projects Arduino FDC BBC FDC https://www.chzsoft.de/site/hardware/preserving-a-floppy-disk-with-a-logic-analyzer/ https://github.com/brouhaha/fluxtoimd