FDC87W21 Ver la hoja de datos (PDF) - SMSC -> Microchip
Número de pieza
componentes Descripción
Lista de partido
FDC87W21 Datasheet PDF : 164 Pages
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PHASE
Command
Execution
PHASE
Command
Result
PHASE
Command
PHASE
Command
Execution
PHASE
Command
Execution
(10) Recalibrate
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W
0
0
0
0
0
1
1
1 Command codes
W
0
0
0
0
0
0 DS1 DS0
Head retracted to
Track 0 Interrupt
(11) Sense Interrupt Status
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
R
---------------- PCN -------------------------
the end of each seek
operation
(12) Specify
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
(13) Seek
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W
0
0
0
0
1
1
1
1 Command codes
W
0
0
0
0
0 HDS DS1 DS0
W
-------------------- NCN -----------------------
R
Head positioned over
proper cylinder on
diskette
(14) Configure
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W
0
0
0
1
0
0
1
1 Configure
information
W
0
0
0
0
0
0
0
0
W
0 EIS EFIFO POLL | ------ FIFOTHR ----|
W
| --------------------PRETRK ---------------------- |
Internal registers
written
28
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