File Unsafe Reset (Fur); In Use (Use); Output Signals; Index (Idx) - NEC FD1165 Maintenance Manual

WOT
(FM)
T
=
2J.Ls
W=0.15T01J.ls
(2T
=
4
J.LS
± 12 ns)
~TM)
-1
W r-
~T+1.5T+-2T-1
T
= 2J.Ls
W
=
0.1 5
J.LS
TO 1
J.LS
(2T
=
4
J.LS
± 12 ns)
Figure 3-5 write Oata Signal Timing
3.3.9 File Unsafe Reset (FUR)
A low FUR signal resets the File Unsafe status (see Section
3.4.5) •
3.3.10 In Use (USE)
The USE line goes Low to
inst~uct
the disk drive to lock the
door (see Section 2.8.6 and 2.8.7).
3.4 OUTPUT SIGNALS
This section describes the output signals of the Model
FOIJ.65.
3.4.1 Index (lOX)
This signal occurs on the Index Line once for every rotation
of the flexible disk. Figure 3-6 shows the lOX pulse.
lOX
T· 166.7
±
3.3
ms
W= 1 TO 3 ms
Figure 3-6 Index Signal Timing
3-6