FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 61

• Manufacturer Part Number: FDC37B78X
• Description: Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
• Manufacturer: SMSC Corporation

Because data is not transferred to the host, TC
(pin
command.
implicit TC will be issued to the FDC. This
implicit TC will occur when the SC value has
decremented to 0 (an SC value of 0 will verify
256 sectors).
terminated by setting the EC bit to "0" and the
EOT value equal to the final sector to be
checked. If EC is set to "0", DTL/SC should be
Note: 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.
Format A Track
The Format command allows an entire track to
be formatted. After a pulse from the IDX 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
MT
0
0
0
0
1
1
1
1
89) cannot be used to terminate this
By setting the EC bit to "1", an
This command can also be
EC
0
0
1
1
0
0
1
1
TABLE 28 - VERIFY COMMAND RESULT PHASE
SC = DTL
EOT
SC = DTL
EOT > # Sectors Per Side
SC
EOT
SC > # Sectors Remaining OR
EOT > # Sectors Per Side
SC = DTL
EOT
SC = DTL
EOT > # Sectors Per Side
SC
EOT
SC > # Sectors Remaining OR
EOT > # Sectors Per Side
# Sectors Remaining AND
# Sectors Remaining AND
# Sectors Per Side
# Sectors Per Side
# Sectors Per Side
# Sectors Per Side
SC/EOT VALUE
61
programmed to 0FFH. Refer to Table 27 and
Table 28 for information concerning the values
of MT and EC versus SC and EOT value.
Definitions:
# Sectors Per Side = Number of formatted
sectors per each side of the disk.
# Sectors Remaining = Number of formatted
sectors left which can be read, including side 1
of the disk if MT is set to "1".
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
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
disk
TERMINATION RESULT
to
be
formatted
with