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IT8673F
9
Table 11-18. VERIFY Command Result
MT
EC
SC/EOT
Termination Result
0
0
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
No Error
0
0
Abnormal Termination
0
1
No Error
0
1
Abnormal Termination
1
0
No Error
1
0
Abnormal Termination
1
1
No Error
1
1
Abnormal Termination
11.4.12 Control Commands
The control commands do not transfer any data. Instead, these commands are used to monitor and
manage the data transfer. Three of the Control commands generate an interrupt when finished
READ ID,
RE-CALIBRATE and SEEK. It is strongly recommended that a SENSE INTERRUPT STATUS command be
issued after these commands to capture their valuable interrupt information. The RE-CALIBRATE, SEEK,
and SPECIFY commands do not return any result bytes.
11.4.12.1
The READ ID command is used to find the actual recording head position. It stores the first readable ID field
value into the FDC registers. If the FDC cannot find an ID Address Mark by the time a second INDEX pulse
is received, an abnormal termination will be generated by setting the IC code in the ST0 to 01.
READ ID
11.4.12.2
The CONFIGURE command determines some special operation modes of the controller. It needs not to be
issued if the default values of the controller meet the system requirements.
EIS: Enable Implied Seeks. A SEEK operation is performed before a READ, WRITE, SCAN, or VERIFY
commands.
0 = Disabled (default).
1 = Enabled.
DFIFO: Disable FIFO.
0 = Enabled.
1 = Disabled (default).
POLLD: Disable polling of the drives.
CONFIGURE