Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
READ A TRACK
DATA BUS
PHASE
R/W D7
D6
MFM
0
D5 D4 D3
D2
D1
D0
REMARKS
Command
W
W
W
0
0
0
0
0
0
0
0
0
1
0
Command Codes
HDS DS1 DS0
C
Sector ID information
prior to Command
execution.
W
W
W
W
W
W
H
R
N
EOT
GPL
DTL
Execution
Result
Data transfer between
the FDD and system.
FDC reads all of
cylinders’ contents from
index hole to EOT.
R
ST0
Status information after
Command execution.
R
R
R
ST1
ST2
C
Sector ID information
after Command
execution.
R
R
R
H
R
N
VERIFY
DATA BUS
PHASE
R/W D7
D6
D5 D4 D3
D2
D1
D0
REMARKS
Command
W
W
W
MT MFM SK
1
0
0
0
1
1
0
Command Codes
EC
0
0
HDS DS1 DS0
C
Sector ID information
prior to Command
execution.
W
W
W
W
W
W
H
R
N
EOT
GPL
DTL/SC
Execution
Result
No data transfer takes
place.
R
ST0
Status information after
Command execution.
R
R
R
ST1
ST2
C
Sector ID information
after Command
execution.
R
R
R
H
R
N
SMSC LPC47M182
61
Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
DATASHEET
SMSC [ SMSC CORPORATION ]
