LPC47M192-NW Standard Microsystems (SMSC), LPC47M192-NW Datasheet - Page 55

• Manufacturer Part Number: LPC47M192-NW
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47M192-NW

• Lead Free Status / RoHS Status: Compliant

execution and results. Except where noted in Table 20, the C or R value of the sector address is automatically
incremented (see Table 22).
Read Deleted Data
This command is the same as the Read Data command, only it operates on sectors that contain a Deleted Data
Address Mark at the beginning of a Data Field.
Table 21 describes the effect of the SK bit on the Read Deleted Data command execution and results. Except where
noted in Table 21, the C or R value of the sector address is automatically incremented (see Table 22).
Read A Track
This command is similar to the Read Data command except that the entire data field is read continuously from each
of the sectors of a track. Immediately after encountering a pulse on the nINDEX pin, the FDC starts to read all data
SMSC DS – LPC47M192
SK BIT
VALUE
SK BIT
VALUE
0
0
1
1
0
0
1
1
MT
0
1
0
1
0
1
DATA ADDRESS
DATA ADDRESS
ENCOUNTERED
ENCOUNTERED
Table 21 – Skip Bit vs. Read Deleted Data Command
N
1
1
2
2
3
3
MARK TYPE
Deleted Data
Deleted Data
MARK TYPE
Deleted Data
Deleted Data
Normal Data
Normal Data
Normal Data
Normal Data
Table 20 – Skip Bit vs Read Data Command
256 x 26 = 6,656
256 x 52 = 13,312
512 x 15 = 7,680
512 x 30 = 15,360
1024 x 8 = 8,192
1024 x 16 = 16,384
MAXIMUM TRANSFER
Table 19 – Effects of MT and N Bits
DATASHEET
CAPACITY
SECTOR
SECTOR
READ?
READ?
Yes
Yes
Yes
Yes
Yes
Yes
Page 55
No
No
CM BIT OF
CM BIT OF
ST2 SET?
ST2 SET?
26 at side 0 or 1
26 at side 1
15 at side 0 or 1
15 at side 1
8 at side 0 or 1
16 at side 1
FINAL SECTOR READ
Yes
Yes
Yes
Yes
No
No
No
No
RESULTS
RESULTS
FROM DISK
Normal
termination.
Address not
incremented. Next
sector not
searched for.
Normal
termination.
Normal
termination.
Sector not read
(“skipped”).
Address not
incremented. Next
sector not
searched for.
Normal
termination.
Normal
termination.
Sector not read
(“skipped”).
Normal
termination.
DESCRIPTION
DESCRIPTION
OF RESULTS
OF RESULTS
Rev. 03/30/05