W83877TF Datasheet, PDF (36/154 Pages) Winbond – I/O chip disk drive adapter

W83877TF
(12) Specify
PHASE R/W
Command W
W
W
D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
0
0
1
1
| ---------SRT ----------- | --------- HUT ---------- |
|------------ HLT -----------------------------------| ND
REMARKS
Command codes
(13) Seek
PHASE
Command
Execution
R/W
W
W
W
R
D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
0
0
0
0
1
1
1
1 _{Command codes}
0
0
0
0
0 HDS DS1 DS0
-------------------- NCN -----------------------
Head positioned over
proper cylinder on diskette
(14) Configure
PHASE R/W
Command W
W
W
W
Execution
D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0 EIS EFIFO POLL | ------ FIFOTHR ----|
| --------------------PRETRK ---------------------- |
REMARKS
Configure information
Internal registers written
(15) Relative Seek
PHASE R/W
Command W
W
W
D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
1 DIR 0
0
1
1
1
1 _{Command codes}
0
0
0
0
0 HDS DS1 DS0
| -------------------- RCN ---------------------------- |
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Publication Release Date: March 1998
Version 0.61