FDC37C669-MT SMSC, FDC37C669-MT Datasheet - Page 35

• Manufacturer Part Number: FDC37C669-MT
• Description: IC CTRLR SUPER I/O FLPPY 100TQFP
• Manufacturer: SMSC

Specifications of FDC37C669-MT

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 25mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1008

BIT NO.
7
6
5
4
3
2
1
0
EN
DE
OR
ND
NW
MA
SYMBOL
Table 15 - Status Register 1
End of
Cylinder
Data Error
Overrun/
Underrun
No Data
Not Writeable
Missing
Address Mark
NAME
The FDC tried to access a sector beyond the final sector
of the track (255D). Will be set if TC is not issued after
Read or Write Data command.
Unused. This bit is always "0".
The FDC detected a CRC error in either the ID field or
the data field of a sector.
Becomes set if the FDC does not receive CPU or DMA
service within the required time interval, resulting in data
overrun or underrun.
Unused. This bit is always "0".
Any one of the following:
1. Read Data, Read Deleted Data command - the FDC
2. Read ID command - the FDC cannot read the ID field
3. Read A Track command - the FDC cannot find the
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:
1. The FDC did not detect an ID address mark at the
2. The FDC cannot detect a data address mark or a
35
did not find the specified sector.
without an error.
proper sector sequence.
specified track after encountering the index pulse
from the IDX pin twice.
deleted data address mark on the specified track.
DESCRIPTION