W83977EF Datasheet, PDF (33/150 Pages) Winbond – WINBOND I/O

W83977EF
(6) Version
PHASE R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
Command W 0 0 0 1 0 0 0 0
Command code
Result
R
1 0 010 00 0
Enhanced controller
(7) Write Data
PHASE R/W
Command W
W
W
W
W
W
W
W
W
Execution
Result
R
R
R
R
R
R
R
D7 D6 D5 D4 D3 D2 D1 D0
MT MFM 0 0 0 1 0 1
0 0 0 0 0 HDS DS1 DS0
---------------------- C ------------------------
---------------------- H ------------------------
---------------------- R ------------------------
---------------------- N ------------------------
-------------------- EOT -----------------------
-------------------- GPL -----------------------
-------------------- DTL -----------------------
-------------------- ST0 -----------------------
-------------------- ST1 -----------------------
-------------------- ST2 -----------------------
---------------------- C ------------------------
---------------------- H ------------------------
---------------------- R ------------------------
---------------------- N ------------------------
REMARKS
Command codes
Sector ID information prior
to Command execution
Data transfer between the
FDD and system
Status information after
Command execution
Sector ID information after
Command execution
Publication Release Date: April 2003
-27 -
Revision 1.1