82091AA Datasheet, PDF (139/204 Pages) Intel Corporation – ADVANCED INTEGRATED PERIPHERAL (AIP)

82091AA
Table 24 FDC Command Set (Continued)
Data Bus
Phase R W
D7 D6 D5 D4
D3 D2 D1 D0
Remarks
Format and Write
Command W
W
W
W
W
W
1 MFM 1
0
0
0
0
0
N
SC
GPL
D
1
1
0
1 Command Code
0 HDS DS1 DS0
Execution W
repeated W
for each W
sector
W
W
Result
R
R
R
R
R
R
R
C
H
R
N
Data Transfer Of N Bytes
ST 0
ST 1
ST 2
Undefined
Undefined
Undefined
Undefined
Input
Sector
Parameters
FDC Formats and
Writes Entire Track
Invalid
Command W
Invalid Codes
Invalid Command
Codes (Noop FDC
goes into Standby
State)
Result
R
ST 0
ST 0^e80
139