INSTRUCTION SET
Table 20 - Instruction Set
READ DATA
DATA BUS
PHASE
R/W
REMARKS
D7
D6
D5 D4 D3 D2 D1 D0
Command
W
W
W
MT MFM SK
0
0
0
0
1
1
0
Command Codes
0
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 --------
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SMSC [ SMSC CORPORATION ]
