User guide

900S Series Industrial Grade CFast Product Manual v2.0Cactus Technologies
®
22
Byte Value Description
396 “1” : Global Wear Leveling active
397 “1” : Global Bad Block Management active
398-401 Average Flash Block Erase Count
402-405 Number of Flash Blocks involved in Wear Leveling
406-510 00h Reserved
511 checksum
S.M.A.R.T. Attributes
6.5.
The CFast card monitors 10 attributes as shown in the following table:
ID Description
196 Spare block count
213 Spare block count worse chip
229 Erase count
203 ECC error count
204 Corrected ECC error count
199 UDMA CRC error count
232 Number of reads
12 Power on count
241 Total LBAs written
242 Total LBAs read
The following tables lists the returned data for each reported attribute.
Attribute 196: Spare Block Count
Byte Value Description
0 196 Attribute ID
1-2 0003h Flags – Pre-fail type, attribute value is updated during normal operation
3
Attribute value – percentage of remaing spare blocks summed over all the
ash chips ( 100 x current spare blocks / initial spare blocks)
4 Attribute value (worst value)
5-7 Sum of the initial spare blocks over all ash chips
8-10 Sum of the current spare blocks over all ash chips
11 00h Reserved