FDC87W21 Ver la hoja de datos (PDF) - SMSC -> Microchip
Número de pieza
componentes Descripción
Lista de partido
FDC87W21 Datasheet PDF : 164 Pages
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PHASE
Command
Execution
Result
PHASE
Command
Execution
Result
(4) Read ID
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W
0 MFM 0
0
1
0
1
0 Command codes
W
0
0
0
0
0 HDS DS1 DS0
The first correct ID
information on the
cylinder is stored in
Data Register
R
-------------------- ST0 -----------------------
Status information
R
-------------------- ST1 -----------------------
after command
R
-------------------- ST2 -----------------------
execution
R
---------------------- C ------------------------
Disk status after the
R
---------------------- H ------------------------
command has been
R
---------------------- R ------------------------
completed
R
---------------------- N ------------------------
(5) Verify
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W
MT MFM SK 1
0
1
1
0 Command codes
W
EC 0
0
0
0 HDS DS1 DS0
W
---------------------- C ------------------------
Sector ID information
W
---------------------- H ------------------------
prior to command
execution
W
---------------------- R ------------------------
W
---------------------- N ------------------------
W
-------------------- EOT -----------------------
W
-------------------- GPL -----------------------
-------------------- DTL/SC -------------------
No data transfer
takes place
R
-------------------- ST0 -----------------------
Status information
R
-------------------- ST1 -----------------------
after command
R
-------------------- ST2 -----------------------
execution
R
---------------------- C ------------------------
Sector ID information
R
---------------------- H ------------------------
after command
R
---------------------- R ------------------------
execution
R
---------------------- N ------------------------
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