WRITE DATA
DATA BUS
PHASE
R/W
REMARKS
Command Codes
D7
D6
D5 D4 D3 D2 D1 D0
Command
W
W
W
MT MFM
0
0
0
0
0
0
0
1
0
1
0
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.
R
─────── ST0 ───────
Status information after Com-
mand execution.
R
R
R
─────── ST1 ───────
─────── ST2 ───────
──────── C ────────
Sector ID information after
Command execution.
R
R
R
──────── H ────────
──────── R ────────
──────── N ────────
WRITE DELETED DATA
DATA BUS
PHASE
R/W
REMARKS
D7
D6
D5 D4 D3
D2
D1
D0
Command
W
W
W
MT MFM
0
0
0
0
1
0
0
0
1
Command Codes
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 ───────
Execution
Result
Data transfer between
the FDD and system.
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 DS – LPC47S45x
Page 46 of 259
Rev. 07/09/2001
DATASHEET
SMSC [ SMSC CORPORATION ]
