PC87332VLJ-5 NSC [National Semiconductor], PC87332VLJ-5 Datasheet - Page 51

• Manufacturer Part Number: PC87332VLJ-5
• Description: PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
• Manufacturer: NSC [National Semiconductor]

4 0 FDC Command Set Description
Command Phase
Execution Phase Data is transferred from the system to
the controller via DMA or Non-DMA modes and written to
the disk
Result Phase
MT
IPS
MFM
X
End of Track Sector Number
X
0
Intersector Gap Length
Drive Head Number
Status Register 0
Status Register 1
Status Register 2
Bytes per Sector
Bytes per Sector
Sector Number
Sector Number
Track Number
Track Number
Head Number
Data Length
X
0
0
X
HD
1
DR1
0
DR0
1
(Continued)
51
4 1 24 Write Deleted Data
The Write Deleted Data command receives data from the
host and writes logical sectors containing a Deleted Data
AM to the selected drive This command is identical to the
Write Data command except that a Deleted Data AM is writ-
ten to the Data Field instead of a Normal Data AM
Command Phase
Execution Phase Data is transferred from the system to
the controller via DMA or Non-DMA modes and written to
the disk
Result Phase
IPS
MT
MFM
X
End of Track Sector Number
0
X
Intersector Gap Length
Drive Head Number
Status Register 0
Status Register 1
Status Register 2
Bytes per Sector
Bytes per Sector
Sector Number
Sector Number
Track Number
Track Number
Head Number
Data Length
0
X
X
1
HD
0
DR1
0
DR0
1