Tandy 1000 SL Technical Reference Manual page 189

Table 4. Instruction Sei(Notes 1,2)fcont)
Plmn RIW DI
DI
DB
4
Da
4
DI
Do
WfIbDn
lllsmdmcoda
I*nurLI
-
Command W MT
MF 0 0 0 1 0
1
Commandcodes
W
X X X X X HD US1 US0
w -
w -
-
are mpared against header on floppy disk.
w -
w -
W
EOT
-
w -
GPL
W DTL
Sector ID information prior to m m a n d execution. The 4 bytes
biiutbn
ResuH
R - STO
-
Status information after wmmand
executlon
Data transfer between the main system and FDD
R - ST1
R - ST2
c
R -
R -
-
R
R -
Sector ID information after command execution
I I
W I I M W l b b
Command W MT MF 0 0
1
0 0
1
Commandcodes
W
X
X
X
X X HD US1
US,
W
-
Sector IDinformationpriwtouwnmandexecutlon. The4 bytes
w -
w -
w -
w -
EOT
w -
GPL
W
-
DTL
are mpared against header on floppy disk.
Execution
Result R - STO Status information aner command execution
Data transfer batman the FDD and main system
R sT1
R -
ST2
R -
R -
R -
R
F
Sector ID Information after command execution
R d d A T k k
Command W
0
MF SK
0
0
0 1 0
Commandcodes
W
X X X X
X
HD
US1 US0
w -
w -
w -
w -
I
W
EOT
W
GPL
w -
DTL
Sector ID information prior
to
command execution
Execution
Result R STO
-
Status information after command execution
Data transfer
between
the FDD and main system. FDC reads all
data fields from index hole to EOT.
R - sT1
R
sT2
R -
R
R
R -
I
Sector ID information after command execution
6-14