SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 65

• Manufacturer Part Number: SCH3112I-NE
• Description: LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
• Manufacturer: SMSC [SMSC Corporation]

LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
Datasheet
SMSC SCH311X
BIT NO.
0
BIT NO.
7
6
5
4
3
2
1
0
BIT NO.
7
6
5
4
3
2
1,0
SYMBOL
MA
SYMBOL
CM
DD
WC
BC
MD
SYMBOL
WP
T0
HD
DS1,0
Table 7.11 Status Register 1 (continued)
NAME
Missing
Address Mark
NAME
Control Mark
Data Error in
Data Field
Wrong
Cylinder
Bad Cylinder
Missing Data
Address Mark
NAME
Write
Protected
Track 0
Head Address
Drive Select
Table 7.12 Status Register 2
Table 7.13 Status Register 3
DATASHEET
DESCRIPTION
Any one of the following:
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.
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.
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".
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.
The FDC cannot detect a data address mark or a deleted
data address mark.
DESCRIPTION
Unused. This bit is always "0".
Indicates the status of the WRTPRT pin.
Unused. This bit is always "1".
Indicates the status of the TRK0 pin.
Unused. This bit is always "1".
Indicates the status of the HDSEL pin.
Indicates the status of the DS1, DS0 pins.
49
Rev 0.2 (09-28-04)