Sharp FDD-412A - Page 29

(2)
Outline
of
operation
Operation
flow
Condition
Command
from
FDC
.
VFO circuit
pulling in
i
Command
from
FDC
Data read out
(LOW CURRENT-N)
(MFM GATE-N)
VFO SYNC-N
DATA AREA-N ere
FDD412A/B
Description
In reading data from inner
tracks (44.76).
In reading MFM data.
The data read out is auto-
matically transferred to the
FDC.
The FDC gives a command after
detecting AM in the data part.
With the VFO provided (model A),.
data and clock bits are auto-
matically separated for trans-
mission.
Fig.
2.21
Outline
of
Read
Operation
~23—