F71862
W
|------------------------------------- SRT ---------------------------------------|
ND
Seek
Phase
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Remark
Command
W
0
0
0
0
1
1
1
1
Command code
W
W
0
0
0
0
0
HDS
DS1
DS0
---------------------------- NCN --------------------------
Execution
Head positioned
over proper
cylinder on diskette
Configure
Phase
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Remark
Command
W
0
0
0
1
0
0
1
1
Command code
W
W
W
0
0
0
0
0
0
HDS
DS1
DS0
EIS
EFIFO
POLL
|---------------- FIFOTHR ---------------|
---------------------------- PRETRK --------------------------
Execution
Internal registers
written
Relative Seek
Phase
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Remark
Command
W
1
DIR
0
0
1
1
1
1
Command code
W
W
0
0
0
0
0
HDS
DS1
DS0
---------------------------- RCN --------------------------
Perpendicular Mode
Phase
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Remark
Command
W
0
0
0
1
0
0
1
0
Command code
W
OW
0
D3
D2
D1
D0
GAP
WGATE
Lock
Phase
Command
Result
R/W
W
D7
LOCK
0
D6
0
D5
0
D4
1
D3
0
D2
1
D1
0
D0
0
Remark
Command code
R
0
0
LOCK
0
0
0
0
Dumpreg
Phase
R/W
W
D7
D6
D5
D4
D3
D2
D1
D0
Remark
Command
Result
0
0
0
0
1
1
1
0
Command code
R
R
-------------------------- PCN ( Drive 0 ) ------------------------
-------------------------- PCN ( Drive 0 ) ------------------------
31
July, 2008
V.28P