Instruction Manual

503 Series Industrial Grade CompactFlash Card Product Manual v2.1Cactus Technologies
®
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Oset Value Description
410 – 413 Number of correctable ECC errors during rmware initialization
414 – 510 00h ----
511 Data structure checksum
There are 12 attributes dened for the -503 series products. The following sections describe in
detail what these attributes are.
5.4.1. Spare Block Count Attribute
This attribute gives information about the amount of available spare blocks. The data structure of
this attribute is as follows:
Oset Value Description
0 196 Attribute ID
1 – 2 0003h Flags – Pre-fail type, attribute is updated during normal operation
3
Attribute value – the value returned here is the percentage of spare blocks
remaining summed over all ash chips
4 Attribute value – worse value
5 – 7 Sum of initial number of spare blocks over all ash chips
8 – 10 Sum of current number of spare blocks over all ash chips
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.
5.4.2. Spare Block Count Worse Chip Attribute
This attribute gives information about the spare blocks in the ash chip with the lowest current
number of spare blocks. The data structure of this attribute is as follows:
Oset Value Description
0 213 Attribute ID
1 – 2 0002h Flags – Advisory type, attribute is updated during normal operation
3 64h Attribute value – this value is xed at 100
4 64h Attribute value – this value is xed at 100
5 – 7
Initial number of spare blocks in the ash chip with the lowest current num-
ber of spare blocks
8 – 10
Current number of spare blocks in the ash chip with the lowest current
number of spare blocks
11 00h Reserved