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LPC47M14X 数据表(PDF) 51 Page - SMSC Corporation

部件名 LPC47M14X
功能描述  128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
PDF  205 Pages
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制造商  SMSC [SMSC Corporation]
网页  http://www.smsc.com
标志 SMSC - SMSC Corporation

LPC47M14X 数据表(HTML) 51 Page - SMSC Corporation

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SMSC DS – LPC47M14X
Page 51
Rev. 03/19/2001
Table 20 – Effects of MT and N Bits
MT
N
MAXIMUM TRANSFER
CAPACITY
FINAL SECTOR READ
FROM DISK
0
1
0
1
0
1
1
1
2
2
3
3
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
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
Table 21 – Skip Bit vs Read Data Command
RESULTS
SK BIT
VALUE
DATA ADDRESS
MARK TYPE
ENCOUNTERED
SECTOR
READ?
CM BIT OF
ST2 SET?
DESCRIPTION OF
RESULTS
0
0
1
1
Normal Data
Deleted Data
Normal Data
Deleted Data
Yes
Yes
Yes
No
No
Yes
No
Yes
Normal
termination.
Address not
incremented. Next
sector not
searched for.
Normal
termination.
Normal
termination.
Sector not read
("skipped").
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).
Table 22 – Skip Bit vs. Read Deleted Data Command
RESULTS
SK BIT
VALUE
DATA ADDRESS
MARK TYPE
ENCOUNTERED
SECTOR
READ?
CM BIT OF
ST2 SET?
DESCRIPTION OF
RESULTS
0
0
1
1
Normal Data
Deleted Data
Normal Data
Deleted Data
Yes
Yes
No
Yes
Yes
No
Yes
No
Address not
incremented. Next
sector not
searched for.
Normal
termination.
Normal
termination.
Sector not read
("skipped").
Normal
termination.



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