37B77X Datasheet, PDF (40/196 Pages) SMSC Corporation – ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES

PHASE
Command
Execution
Result
INSTRUCTION SET
Table 18 - Instruction Set
READ DATA
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W MT MFM SK 0 0 1 1 0 Command Codes
W 0 0 0 0 0 HDS DS1 DS0
W
C
Sector ID information prior to
Command execution.
W
H
W
R
W
N
W
EOT
W
GPL
W
DTL
Data transfer between the
FDD and system.
R
ST0
Status information after
Command execution.
R
ST1
R
ST2
R
C
Sector ID information after
Command execution.
R
H
R
R
R
N
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