W83977ATF Datasheet, PDF (30/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
(12) Specify
PHASE R/W
Command W
W
W
D7 D6 D5 D4 D3 D2 D1 D0
0 00 0 0 01 1
| ---------SRT ----------- | --------- HUT ---------- |
|------------ HLT ----------------------------------| ND
REMARKS
Command codes
(13) Seek
PHASE R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
Command W 0 0 0 0 1 1 1 1 Command codes
W 0 0 0 0 0 HDS DS1 DS0
W
-------------------- NCN -----------------------
Execution R
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 00 1 001 1
00 0 0 000 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
1 DIR 0 0 1 1 1 1
0 0 0 0 0 HDS DS1 DS0
| -------------------- RCN ---------------------------- |
REMARKS
Command codes
Publication Release Date: April 1998
-29 -
Revision 0.52