PC87332VLJ-5 NSC [National Semiconductor], PC87332VLJ-5 Datasheet - Page 53

• 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
READ DATA
Command Phase
Execution Phase Data read from disk drive is transferred
to system via DMA or Non-DMA modes
Result Phase
READ DELETED DATA
Command Phase
Execution Phase Data read from disk drive is transferred
to system via DMA or Non-DMA modes
Result Phase
IPS
IPS
MT
MT
MFM
MFM
X
X
End of Track Sector Number
End of Track Sector Number
SK
SK
X
X
Intersector Gap Length
Intersector Gap Length
Drive Head Number
Drive Head Number
Status Register 0
Status Register 1
Status Register 2
Status Register 0
Status Register 1
Status Register 2
Bytes per Sector
Bytes per Sector
Bytes per Sector
Bytes per Sector
Sector Number
Sector Number
Sector Number
Sector Number
Track Number
Track Number
Track Number
Track Number
Head Number
Head Number
Data Length
Data Length
X
X
0
0
0
X
1
X
HD
HD
1
1
DR1
DR1
1
0
DR0
DR0
0
0
(Continued)
53
READ ID
Command Phase
Execution Phase Controller reads first ID Field header
bytes it can find and reports these bytes to the system in the
result bytes
Result Phase
READ A TRACK
Command Phase
Execution Phase Data read from disk drive is transferred
to system via DMA or non-DMA modes
Result Phase
RECALIBRATE
Command Phase
Execution Phase Disk drive head is stepped out to Track 0
Result Phase None
IPS
0
X
0
0
0
MFM
0
0
MFM
X
X
0
0
End of Track Sector Number
X
0
0
X
Intersector Gap Length
Drive Head Number
Status Register 0
Status Register 1
Status Register 2
Status Register 0
Status Register 1
Status Register 2
Bytes per Sector
Bytes per Sector
Bytes per Sector
0
0
Sector Number
Sector Number
Sector Number
Track Number
Track Number
Track Number
Head Number
Head Number
0
X
Data Length
0
X
0
0
1
X
X
0
1
0
HD
HD
0
0
DR1
DR1
DR1
1
1
1
DR0
DR0
DR0
1
0
0