37C67X Datasheet, PDF (48/194 Pages) SMSC Corporation – ENHANCED SUPER I/O CONTROLLER WITH FAST IR

PHASE
Command
Execution
PHASE
Command
Result
PHASE
Command
RECALIBRATE
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W 000001 1
1 Command Codes
W 0 0 0 0 0 0 DS1 DS0
Head retracted to Track 0
Interrupt.
SENSE INTERRUPT STATUS
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W 0 0 0 0 1 0 0 0 Command Codes
R
ST0
Status information at the end
of each seek operation.
R
PCN
SPECIFY
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W 0 0 0 0 0 0 1 1 Command Codes
W
SRT
HUT
W
HLT
ND
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