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LPC47M172_07 Datasheet

  • LPC47M172_07

  • SMSC Corporation [Advanced I/O Controller with Motherboard ...

  • SMSC   SMSC

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Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
BIT NO.
2
SYMBOL
ND
1
NW
0
MA
DESCRIPTION
Any one of the following:
1. Read Data, Read Deleted Data command - the
FDC did not find the specified sector.
2. Read ID command - the FDC cannot read the ID
field without an error.
3. Read A Track command - the FDC cannot find the
proper sector sequence.
Not Writeable WP pin became a "1" while the FDC is executing a
Write Data, Write Deleted Data, or Format A Track
command.
Any one of the following:
Missing
Address Mark 1. The FDC did not detect an ID address mark at the
specified track after encountering the index pulse
from the nINDEX pin twice.
2. The FDC cannot detect a data address mark or a
deleted data address mark on the specified track.
NAME
No Data
Table 6.14 - Status Register 2
BIT NO.
7
6
SYMBOL
CM
NAME
Control Mark
DESCRIPTION
Unused. This bit is always "0".
Any one of the following:
Read Data command - the FDC encountered a deleted
data address mark.
Read Deleted Data command - the FDC encountered a
data address mark.
The FDC detected a CRC error in the data field.
5
4
3
2
1
DD
WC
BC
0
MD
The track address from the sector ID field is different
from the track address maintained inside the FDC.
Unused. This bit is always "0".
Unused. This bit is always "0".
Bad Cylinder The track address from the sector ID field is different
from the track address maintained inside the FDC and
is equal to FF hex, which indicates a bad track with a
hard error according to the IBM soft-sectored format.
Missing Data The FDC cannot detect a data address mark or a
Address Mark deleted data address mark.
Data Error in
Data Field
Wrong
Cylinder
Table 6.15 - Status Register 3
BIT NO.
7
6
5
4
3
2
1,0
SYMBOL
WP
NAME
Write
Protected
DESCRIPTION
Unused. This bit is always "0".
Indicates the status of the WRTPRT pin.
T0
HD
DS1,0
Unused. This bit is always "1".
Track 0
Indicates the status of the TRK0 pin.
Unused. This bit is always "1".
Head Address Indicates the status of the HDSEL pin.
Drive Select
Indicates the status of the DS1, DS0 pins.
Page 50
SMSC LPC47M172
SMSC/Non-SMSC Register Sets (Rev.
01-11-07)
DATASHEET

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