GM82C803CN Datasheet, PDF (55/84 Pages) List of Unclassifed Manufacturers – 2.88 MB FDC/ Dual UARTs with FIFO/PIO(EPP/ ECP)/ IDE Interface/ S-IR/ PnP

GM82C803CN
Table 4-28. Verify Command Result Phase Table
MT
EC
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
SC/EOT Value
SC = DTL(FFH)
EOT # Sectors per Side
SC = DTL(FFH)
EOT > # Sectors per Side
SC # Sectors Remaining
and
EOT # Sectors per Side
SC > # Sectors Remaining
or
EOT > # Sectors per Side
SC = DTL(FFH)
EOT # Sectors per Side
SC = DTL(FFH)
EOT > # Sectors per Side
SC # Sectors Remaining
and
EOT # Sectors per Side
SC > # Sectors Remaining
or
EOT > # Sectors per Side
Termination Result
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
Successful Termination
Result Phase Valid
Unsuccessful Termination
Result Phase Invalid
1. # Sectors per Side : Number of formatted sectors per each side of the disk.
2. # Sectors Remaining : Number of formatted sectors left which can be read including side 1 of the disk if MT
is set to 1.
3. If MT is set to 1 and SC value is greater than the number of remaining formatted sectors on Side 0, verifying
will continue on Side 1 of the disk.
Version
The Version command can be used to determine the FDC being used. The result phase uniquely identifies
the FDC version. The FDC returns a value of 90H in order to be compatible with the 82077 of Intel. The
NEC765 compatible FDC will return a value of 80H (invalid command).