Instruction Manual

503 Series Industrial Grade CompactFlash Card Product Manual v2.1Cactus Technologies

5.4.3. Erase Count Attribute

This attribute gives information about the number of ash block erases performed. The data

structure of this attribute is as follows:

Oset Value Description

0 229 Attribute ID

1 – 2 000Xh

Flags – Pre-fail or Advisory type, attribute is updated during normal opera-

tion

Attribute value – the value returned here is an estimation of the percentage

of card life remaining based on the number of ash block erases that have

occurred and the target number of erases per ash block.

4 Attribute value – worse value

5 – 10 Estimated total number of block erases

11 00h Reserved

This attribute is used for the SMART Return Status command. If the attribute value is less than a

preset threshold determined during at factory low level format process, the SMART Return Status

will indicate a threshold exceeded condition.

The target number of erases is set during factory low level format time. The attribute ag – Pre-fail

or Advisory, is also set at that time.

5.4.4. Total ECC Error Attribute

This attribute gives information about the total number of ECC errors on ash read commands. The

data structure of this attribute is as follows:

Oset Value Description

0 203 Attribute ID

1 – 2 0002h Flags – Advisory type, attribute is updated during normal operation

3 64h Attribute value – xed at 100

4 64h Attribute value – xed at 100

5 – 8 Total number of ECC errors, correctable and uncorrectable

9 – 10 --

11 00h Reserved