PC87332VLJ-5 NSC [National Semiconductor], PC87332VLJ-5 Datasheet - Page 52

• 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
4 2 COMMAND SET SUMMARY
CONFIGURE
Command Phase
Execution Phase Internal registers written
Result Phase None
DUMPREG
Command Phase
Execution Phase Internal registers read
Result Phase
Note Sectors per Track parameter returned if last command issued was
FORMAT TRACK
Command Phase
Execution Phase System transfers four ID bytes (track
head sector bytes sector) per sector to the floppy control-
ler via DMA or Non-DMA modes The entire track is format-
ted The data block in the Data Field of each sector is filled
with the data pattern byte
LOCK
0
X
0
0
0
0
0
Format End of Track parameter returned if last command issued was
Read or Write
Step Rate Time
MFM
EIS
0
0
EIS
X
0
0
Sector per Track End of Track (Note)
FIFO
DC3
FIFO
0
0
X
0
0
Motor On Time
Sectors per Track
Bytes per Sector
POLL
0
X
Data Pattern
PTR Drive 0
PTR Drive 1
PTR Drive 2
PTR Drive 3
DC2
Format Gap
0
PRETRK
PRETRK
POLL
1
0
1
X
DC1
1
HD
0
0
1
Motor Off Time
DC0
1
THRESH
THRESH
0
0
DR1
0
GAP
1
1
0
DR0
DMA
WG
1
0
1
0
(Continued)
52
Result Phase
INVALID
Command Phase
Execution Phase None
Result Phase
LOCK
Command Phase
Execution Phase Internal Lock register is written
Result Phase
MODE
Command Phase
Execution Phase Internal registers are written
Result Phase None
NSC
Command Phase
Execution Phase None
Result Phase
PERPENDICULAR MODE
Command Phase
Execution Phase Internal registers are written
Result Phase None
TMR
FWR
OW
LOCK
0
0
0
0
0
0
DENSEL
0
0
0
FRD
IAF
0
1
0
0
0
DC3
0
0
BST
BFR
IPS
0
1
0
0
Status Register 0 (80h)
0
Status Register 0
Status Register 1
Status Register 2
Invalid Op Codes
DC2
LOCK
1
R255
WLD
Undefined
Undefined
Undefined
Undefined
1
1
0
0
0
1
DC1
0
1
0
0
0
0
LOW PWR
0
0
DC0
0
Head Settle
0
0
1
0
RG
0
0
GAP
1
0
1
0
0
0
1
0
0
ETR
WG
PU
1
0
0
1
0
0
0