PC87334VLJ Datasheet, PDF (58/102 Pages) National Semiconductor (TI) – SuperI/O 3.3V/5V Floppy Disk Controller, Dual UARTs, Infrared, IEEE1284 Parallel Port, and IDE Interface

4 0 FDC Command Set Description (Continued)
WRITE DATA
WRITE DELETED DATA
Command Phase
Command Phase
MT
MFM
0
0
0
1
0
1
IPS
X
X X X HD DR1 DR0
Track Number
Drive Head Number
Sector Number
Bytes per Sector
End of Track Sector Number
Intersector Gap Length
Data Length
MT
MFM
0
0
1
0
0
1
IPS
X
X X X HD DR1 DR0
Track Number
Drive Head Number
Sector Number
Bytes per Sector
End of Track Sector Number
Intersector Gap Length
Data Length
Execution Phase Data is transferred from the system to
the controller via DMA or Non-DMA modes and written to
the disk
Execution Phase Data is transferred from the system to
the controller via DMA or Non-DMA modes and written to
the disk
Result Phase
Result Phase
Status Register 0
Status Register 1
Status Register 2
Track Number
Head Number
Sector Number
Bytes per Sector
Status Register 0
Status Register 1
Status Register 2
Track Number
Head Number
Sector Number
Bytes per Sector
58