
W83977F/ W83977AF
PRELIMINARY
Publication Release Date: March 1998
-28-
Revision 0.58
(9) Format A Track
PHASE
R/W
D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
Command
W
W
W
W
W
W
0 MFM 0 0 1 1 0 1
0 0 0 0 0 HDS DS1 DS0
---------------------- N ------------------------
--------------------- SC -----------------------
--------------------- GPL ---------------------
---------------------- D ------------------------
Command codes
Bytes/Sector
Sectors/Cylinder
Gap 3
Filler Byte
Execution
for Each
Sector
Repeat:
W
W
W
W
---------------------- C ------------------------
---------------------- H ------------------------
---------------------- R ------------------------
---------------------- N ------------------------
Input Sector Parameters
Result
R
R
R
R
R
R
R
-------------------- ST0 -----------------------
-------------------- ST1 -----------------------
-------------------- ST2 -----------------------
---------------- Undefined -------------------
---------------- Undefined -------------------
---------------- Undefined -------------------
---------------- Undefined -------------------
Status information after
command execution
(10) Recalibrate
PHASE
Command
R/W
W
W
D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 0 0 1 1 1
0 0 0 0 0 0 DS1 DS0
REMARKS
Command codes
Execution
Head retracted to Track 0
Interrupt
(11) Sense Interrupt Status
PHASE
R/W
D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
Command
W
0 0 0 0 1 0 0 0
Command code
Result
R
R
---------------- ST0 -------------------------
---------------- PCN -------------------------
Status information at the end
of each seek operation