LPC47B272-MS SMSC, LPC47B272-MS Datasheet - Page 47
![IC CTRLR SUPER I/O LPC 100-QFP](/photos/6/82/68212/qfp100-g1_pkg_sml.jpg)
LPC47B272-MS
Manufacturer Part Number
LPC47B272-MS
Description
IC CTRLR SUPER I/O LPC 100-QFP
Manufacturer
SMSC
Datasheet
1.LPC47B272-MS.pdf
(195 pages)
Specifications of LPC47B272-MS
Controller Type
I/O Controller
Interface
LPC
Voltage - Supply
3.3V
Current - Supply
15mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
638-1019
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Note:
Format A Track
The Format command allows an entire track to be formatted. After a pulse from the nINDEX pin is detected, the FDC
starts writing data on the disk including gaps, address marks, ID fields, and data fields per the IBM System 34 or 3740
format (MFM or FM respectively). The particular values that will be written to the gap and data field are controlled by the
values programmed into N, SC, GPL, and D which are specified by the host during the command phase. The data field
of the sector is filled with the data byte specified by D. The ID field for each sector is supplied by the host; that is, four
data bytes per sector are needed by the FDC for C, H, R, and N (cylinder, head, sector number and sector size
respectively).
After formatting each sector, the host must send new values for C, H, R and N to the FDC for the next sector on the
track. The R value (sector number) is the only value that must be changed by the host after each sector is formatted.
This allows the disk to be formatted with nonsequential sector addresses (interleaving).
formatting continues for the whole track until the FDC encounters a pulse on the nINDEX pin again and it terminates the
command.
Table 24 contains typical values for gap fields which are dependent upon the size of the sector and the number of
sectors on each track. Actual values can vary due to drive electronics.
SMSC LPC47B27x
If MT is set to "1" and the SC value is greater than the number of remaining formatted sectors on Side 0,
verifying will continue on Side 1 of the disk.
MT
0
0
0
0
1
1
1
1
EC
0
0
1
1
0
0
1
1
SC = DTL
EOT ≤ # Sectors Per Side
SC = DTL
EOT > # Sectors Per Side
SC ≤ # Sectors Remaining AND
EOT ≤ # Sectors Per Side
SC > # Sectors Remaining OR
EOT > # Sectors Per Side
SC = DTL
EOT ≤ # Sectors Per Side
SC = DTL
EOT > # Sectors Per Side
SC ≤ # Sectors Remaining AND
EOT ≤ # Sectors Per Side
SC > # Sectors Remaining OR
EOT > # Sectors Per Side
Table 23 - Verify Command Result Phase
SC/EOT VALUE
DATASHEET
- 47 -
Success Termination
Result Phase Valid
Unsuccessful Termination
Result Phase Invalid
Successful Termination
Result Phase Valid
Unsuccessful Termination
Result Phase Invalid
Successful Termination
Result Phase Valid
Unsuccessful Termination
Result Phase Invalid
Successful Termination
Result Phase Valid
Unsuccessful Termination
Result Phase Invalid
TERMINATION RESULT
Rev. 04-17-07
This incrementing and
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