FlashDrive Product Manual
FlashDrive Product Manual © 1999 SANDISK CORPORATION
48
6.1.13
Read Verify Sector(s) - 40H or 41H
Bit ->
7
6
5
4
3
2
1
0
Command (7)
40H or 41H
C / D / H ( 6 )
1
LBA
1
Drive
Head (LBA 27-24)
Cyl High (5)
Cylinder High (LBA 23-16)
Cyl Low (4)
Cylinder Low (LBA 15-8)
Sec Num (3)
Sector Number (LBA 7-0)
Sec Cnt (2)
Sector Count
Feature (1)
X
This command is identical to the Read Sectors
command, except that DRQ is never set and no
data is transferred to the host. When the
command is accepted, the FlashDrive sets BSY.
When the requested sectors have been verified,
the FlashDrive clears BSY and generates an
interrupt. Upon command completion,
the
Command Block Registers contain the cylinder,
head, and sector number of the last sector verified.
If an error occurs, the verify terminates at the
sector where the error occurs. The Command Block
Registers contain the cylinder, head and sector
number of the sector where the error occurred. The
Sector Count Register contains the number of
sectors not yet verified.
6.1.14
Recalibrate - 1XH
Bit ->
7
6
5
4
3
2
1
0
Command (7)
1XH
C / D / H ( 6 )
1
LBA
1
Drive
X
Cyl High (5)
X
Cyl Low (4)
X
Sec Num (3)
X
Sec Cnt (2)
X
Feature (1)
X
This command is effectively a NOP command to
the FlashDrive and is provided for compatibility
purposes. After this command is executed the Cyl
High and Cyl Low as well as the Head number
will be 0 and Sec Num will be 1 if LBA=0 and 0 if
LBA=1 (i.e. the first block in LBA is 0 while CHS
mode the sector number starts at 1).
Содержание SDIB-4
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Страница 16: ...FlashDrive Product Manual FlashDrive Product Manual 1999 SANDISK CORPORATION 16 Figure 2 2 2 5 inch FlashDrive...
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Страница 65: ...FlashDrive Product Manual 1999 SANDISK CORPORATION 65 SanDisk Sales Offices...
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