LPC47M140-NC SMSC [SMSC Corporation], LPC47M140-NC Datasheet - Page 51

• Manufacturer Part Number: LPC47M140-NC
• Description: 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
• Manufacturer: SMSC [SMSC Corporation]

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 22 describes the effect of the SK bit on the Read Deleted Data command execution and results. Except where
noted in Table 22, the C or R value of the sector address is automatically incremented (see
Table 23).
SMSC DS – LPC47M14X
VALUE
VALUE
SK BIT
SK BIT
0
0
1
1
0
0
1
1
MT
0
1
0
1
0
1
Normal Data
Deleted Data
Normal Data
Deleted Data
Table 22 – Skip Bit vs. Read Deleted Data Command
DATA ADDRESS
DATA ADDRESS
ENCOUNTERED
ENCOUNTERED
N
1
1
2
2
3
3
MARK TYPE
MARK TYPE
Deleted Data
Deleted Data
Normal Data
Normal Data
Table 21 – 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 20 – Effects of MT and N Bits
CAPACITY
SECTOR
SECTOR
READ?
READ?
Yes
Yes
Yes
Yes
Yes
Yes
Page 51
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 OF
DESCRIPTION OF
RESULTS
RESULTS
Rev. 03/19/2001