GM82C803CN Datasheet, PDF (43/84 Pages) List of Unclassifed Manufacturers – 2.88 MB FDC/ Dual UARTs with FIFO/PIO(EPP/ ECP)/ IDE Interface/ S-IR/ PnP

GM82C803CN
PHASE R/W D7 D6 D5
COMMAND ^W
W
MT MFM ^SK
EC
0
0
W
W
W
W
W
W
W
EXECUTION
RESULTS R
R
R
R
R
R
R
VERIFY
D4
D3
1
1
0
0
C
H
R
N
EOT
GPL
STP
ST0
ST1
ST2
C
H
R
N
D2 D1 D0
R/W
1
1
0 Command Codes
HDS DS1 DS0
Sector ID information
prior to command
execution.
No data transfer takes
place.
Status information
after command
execution
Sector ID information
after command
execution
VERSION
PHASE R/W D7 D6 D5 D4
COMMAND ^W
RESULTS R
0
0
0
0
1
0
0
1
D3 D2 D1 D0
R/W
0
1
0 0 Command Codes
0
0
0 0 Enhanced Controller
CONFIGURE
PHASE R/W D7 D6 D5 D4
COMMAND ^W
0
0
0
1
W
0
0
0
0
R
0 _{EIS EFIFO POLL}
D3 D2 D1
0
0
1
0
0
0
FIFOTHR
D0
R/W
1 Configure Information
0
W
PRETRK
RELATIVE SEEK
PHASE R/W D7 D6 D5 D4
COMMAND ^W
W
1 DIR ⁰
0
0
0
0
0
D3 D2 D1 D0
R/W
1
1
1
1
0 HDS DS1 DS0
W
RCN