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This attribute is used for the SMART Return Status command. If the attribute value field is less than the spare
block threshold, the SMART Return Status command will indicate a threshold exceeded condition.
11.3.1.2 Erase Count Attribute
This attribute gives information about the amount of flash block erases that have been performed.
Table 114: Erase Count Attribute for SMART structure version 0004h
Offset
0
1..2
3
4..11
Value
E5h
0002h
Description
Attribute ID – Erase Count Usage (vendor specific)
Flags – Advisory type, value is updated during normal operation
Attribute value. The value returned here is an estimation of the remaining card
life, in percent, based on the number of flash block erases compared to the target
number of erase cycles per block.
Estimated total number of block erases
This attribute is used for the SMART Return Status command. If the attribute value field is less than the erase
count threshold, the SMART Return Status command will indicate a threshold exceeded condition.
11.3.1.3 Total ECC Errors Attribute
This attribute gives information about the total number of ECC errors that have occurred on flash read commands.
This attribute is not used for the SMART Return Status command.
Table 115: Total EC C Errors Attribute for SMART structure version 0004h
Offset
0
1..2
3
4..7
8..11
Value
CBh
0002h
64h
Description
Attribute ID – Number of ECC errors
Flags – Advisory type, value is updated during normal operation
Attribute value. This value is fixed at 100.
Total number of ECC errors (correctable and uncorrectable)
-
11.3.1.4 Correctable ECC Errors Attribute
This attribute gives information about the total number of correctable ECC errors that have occurred on flash read
commands. This attribute is not used for the SMART Return Status command.
Table 116: Correctable ECC Errors Attribute for SMART structure version 0004h
Offset
0
1..2
3
4..7
8..11
Value
CCh
0002h
64h
Description
Attribute ID – Number of corrected ECC errors
Flags – Advisory type, value is updated during normal operation
Attribute value. This value is fixed at 100.
Total number of correctable ECC errors
-
11.3.1.5 Total Number of Reads Attribute
This attribute gives information about the total number of flash read commands. This can be useful for the
interpretation of the number of correctable or total ECC errors. This attribute is not used for the SMART Return
Status command.
Table 117: Total Number of Reads Attribute for SMART structure version 0004h
Offset
0
1..2
3
4..7
8..11
Value
E8h
0002h
64h
Description
Attribute ID – Number of Reads (vendor specific)
Flags – Advisory type, value is updated during normal operation
Attribute value. This value is fixed at 100.
Total number of flash read commands
-
11.3.1.6 UDMA CRC Errors Attribute
This attribute gives information about the total number of UDMA CRC errors that have occurred on flash read
commands. This attribute is not used for the SMART Return Status command.
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.20
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
C-320_data_sheet_CF-HxBO_Rev120.doc
Page 84 of 101
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