FDC87W21 View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
View to exact match
FDC87W21 Datasheet PDF : 164 Pages
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FDC Instruction Sets
PHASE
Command
Execution
Result
R/W
W
W
W
W
W
W
W
W
W
R
R
R
R
R
R
R
(1) Read Data
D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
MT MFM SK
0
0
1
1
0 Command codes
0
0
0
0
0 HDS DS1 DS0
---------------------- C ------------------------
Sector ID
---------------------- H ------------------------
information prior
to command
execution
---------------------- R ------------------------
---------------------- N ------------------------
-------------------- EOT -----------------------
-------------------- GPL -----------------------
-------------------- DTL -----------------------
Data transfer
between the FDD
and system
-------------------- ST0 -----------------------
Status information
-------------------- ST1 -----------------------
after command
-------------------- ST2 -----------------------
execution
---------------------- C ------------------------
Sector ID
---------------------- H ------------------------
information after
---------------------- R ------------------------
command
---------------------- N ------------------------
execution
21
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