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Floppy Disk Controller: Difference between revisions
→DOR bitflag definitions: motor off error
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(Better info on "disk change" flag) |
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Note2: if you want to execute a command that accesses a disk (see the command list below), then that respective disk must have its
motor spinning (and up to speed), '''and''' its "select" bits must be set in the DOR, '''first'''
Note3: toggling DOR reset state requires a 4 microsecond delay. It may be smarter to use DSR reset mode, because
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