RECALIBRATE
DATA BUS
PHASE
R/W D7 D6 D5 D4 D3 D2
D1
D0
REMARKS
Command
W
W
0
0
0
0
0
0
0
0
0
0
1
0
1
1
Command Codes
DS1 DS0
Execution
Head retracted to Track 0
Interrupt.
SENSE INTERRUPT STATUS
DATA BUS
PHASE
Command
Result
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
Command Codes
Status information at the end
of each seek operation.
W
R
0
0
0
0
1
0
0
0
------- ST0 -------
R
------- PCN -------
SPECIFY
DATA BUS
PHASE
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
Command
W
W
W
0
0
0
0
0
0
1
1
Command Codes
--- SRT ---
------ HLT ------
--- HUT ---
ND
48