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FDC87W22 View Datasheet(PDF) - SMSC -> Microchip

Part Name
Description
MFG CO.
FDC87W22
SMSC
SMSC -> Microchip SMSC
'FDC87W22' PDF : 140 Pages View PDF
(4) Read ID
PHASE
R/W
Command
W
W
Execution
D7 D6 D5 D4 D3 D2 D1 D0
0 MFM 0 0 1 0 1 0
0 0 0 0 0 HDS DS1 DS0
Result
R
R
R
R
R
R
R
-------------------- ST0 -----------------------
-------------------- ST1 -----------------------
-------------------- ST2 -----------------------
---------------------- C ------------------------
---------------------- H ------------------------
---------------------- R ------------------------
---------------------- N ------------------------
(5) Verify
PHASE R/W
D7 D6 D5 D4 D3 D2 D1 D0
Command
W
MT MFM SK 1 0 1 1 0
W
EC 0 0 0 0 HDS DS1 DS0
W
---------------------- C ------------------------
W
---------------------- H ------------------------
W
W
W
W
Execution
Result
R
R
R
R
R
R
R
---------------------- R ------------------------
---------------------- N ------------------------
-------------------- EOT -----------------------
-------------------- GPL -----------------------
-------------------- DTL/SC -------------------
-------------------- ST0 -----------------------
-------------------- ST1 -----------------------
-------------------- ST2 -----------------------
---------------------- C ------------------------
---------------------- H ------------------------
---------------------- R ------------------------
---------------------- N ------------------------
REMARKS
Command codes
The first correct ID
information on the
cylinder is stored
in Data Register
Status information
after command
execution
Disk status after
the command has
been completed
REMARKS
Command codes
Sector ID
information prior to
command
execution
No data transfer
takes place
Status information
after command
execution
Sector ID
information after
command
execution
27
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