F81865F View Datasheet(PDF) - Feature Integration Technology Inc.
Part Name
Description
Manufacturer
F81865F Datasheet PDF : 128 Pages
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0
MA
Status Registers 2
Bit
Name
7
Reserved
6
CM
5
DD
4
WC
3
SE
2
SN
1
BC
0
MD
Status Registers 3
Bit
Name
7
Reserved
6
WP
5
Reserved
4
T0
3
Reserved.
2
HD
1
DS1
0
DS0
F81865
Missing Address Mark.
Set when the following conditions occurred:
R
- 1. Cannot detect an ID address mark at the specified track after
encountering the index pulse form the INDEX# pin twice.
2. Cannot detect a data address mark or a deleted data address mark on the
specified track.
R/W Default
Description
-
- Unused. This bit is always “0”.
Control Mark.
Set when following conditions occurred:
R
- 1. Encounters a deleted data address mark during a READ DATA command.
2. Encounters a data address mark during a READ DELETED DATA
command.
Data Error in Data Field.
R
-
The FDC detects a CRC error in the data field.
Wrong Cylinder.
R
- Set when the track address from the sector ID field is different from the track
address maintained inside the FDC.
Scan Equal.
R
-
Set if the equal condition is satisfied during execution of the SCAN command.
Scan Not Satisfied.
R
- Set when the FDC cannot find a sector on the track which meets the desired
condition during any scan command.
Bad Cylinder.
R
- The track address from the sector ID field is different from the track address
maintained inside the FDC and is equal to FFh which indicates a bad track.
Missing Data Address Mark.
R
- Set when the FDC cannot detect a data address mark or a deleted data
address mark.
R/W Default
Description
-
- Unused. This bit is always “0”.
Write Protect.
R
-
Indicates the status of WPT# pin.
R
- Unused. This bit is always “1”.
Track 0.
R
-
Indicates the status of the TRK0# pin.
R
- Unused. This bit is always “1”.
Head Address.
R
-
Indicates the status of the HDSEL# pin.
R
- Drive Select.
R
- These two bits indicate the DS1, DS0 bits in the command phase.
25
May, 2010
V0.28P
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