Read Data And Window Signal Timing; Step And Track 00 Timing; Power On Sequence - NEC FD1165 Maintenance Manual

Figure 3-9
3.6 INTERFACE TIMING
This section describes the interface timing for the Model
FD1165.
3.6.1

Power On Sequence

The FD1165 processes valid I/O signals 700 ms after the door
is closed.
3.6.2 Drive Select
The disk drive processes valid I/O signals 500 ns after the
Drive Select line (DX) goes Low.
3.6.3 Step and Track 00
Figure 3-10 shows the required time relationship between the
Step signal from the controller
signal.
Figure 3-10

Read Data and Window Signal Timing

and

Step and Track 00 Timing

3-10
the Track 00 output