LPC47M140-NC SMSC [SMSC Corporation], LPC47M140-NC Datasheet - Page 49

• Manufacturer Part Number: LPC47M140-NC
• Description: 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
• Manufacturer: SMSC [SMSC Corporation]

SC is returned if the last command that was issued was the Format command. EOT is returned if the last command was
a Read or Write.
Note:
responsibility to maintain correspondence between these bits and the Drive Select pins (DOR).
SMSC DS – LPC47M14X
These bits are used internally only. They are not reflected in the Drive Select pins. It is the user's
Command
Command
Command
Command
Execution
PHASE
PHASE
PHASE
PHASE
Result
Result
Result
R/W
R/W
R/W
R/W
W
W
W
W
W
R
R
R
R
R
R
R
R
R
D7
D7
OW
D7
0
0
LOCK
0
D7
0
MFM
D6
D6
D6
0
0
0
D6
D5
0
0
PERPENDICULAR MODE
D5
D3
D5
0
0
0
Invalid Codes
DATA BUS
INVALID CODES
D5
D4
0
0
D4
D2
DATA BUS
D4
0
0
1
ST0
READ ID
DATA BUS
DATA BUS
LOCK
Page 49
ST0
ST1
ST2
D3
LOCK
C
H
R
N
D3
D3
D1
D4
0
1
0
1
D2
HDS
D2
D0
D2
0
0
D3
0
0
D1
GAP
DS1
D1
D1
1
D2
1
1
0
D0
DS0
D1
WGATE
D0
0
Invalid
(NoOp - FDC goes into Stand-
by State)
ST0 = 80H
0
0
D0
0
D0
0
0
Commands
The
information
Cylinder is stored in
Data Register
Status information after
Command execution.
Disk status after the
Command has
completed
REMARKS
Command Codes
Command
Command Codes
first
REMARKS
REMARKS
REMARKS
correct
on
Codes
Rev. 03/19/2001
the
ID