Programming Floppy Disk Controllers
Intel 82077AA 82077SL 82078 (44 pin) 82078 (64 pin)
National Semiconductor PC8477B Similar to -A, differences are Motor On Time (MNT) in Mode 1, NSC command results 8477B (73H) and 8477A (72H)
NEC µPD765 µPD72065
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