Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
358
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
29.4
Functional Description
The PMERRLOC search operation is started as soon as a write access is detected in the ELEN register and can be
disabled by writing to the ELDIS register. The ENINIT field of the ELEN register shall be initialized with the number of
Galois field elements to test. The set of the roots can be limited to a valid range.
disabled by writing to the ELDIS register. The ENINIT field of the ELEN register shall be initialized with the number of
Galois field elements to test. The set of the roots can be limited to a valid range.
When the PMEERRLOC engine is searching for roots the BUSY field of the ELSR remains asserted. An interrupt is
asserted at the end of the computation, and the DONE bit of the ELSIR register is set. The ERR_CNT field of the ELISR
indicates the number of errors. The error position can be read in the PMERRLOCx registers.
asserted at the end of the computation, and the DONE bit of the ELSIR register is set. The ERR_CNT field of the ELISR
indicates the number of errors. The error position can be read in the PMERRLOCx registers.
Table 29-1. ENINIT field value for a sector size of 512 bytes
Error Correcting Capability
ENINIT Value
2
4122
4
4148
8
4200
12
4252
24
4408
Table 29-2. ENINIT field value for a sector size of 1024 bytes
Error Correcting Capability
ENINIT Value
2
8220
4
8248
8
8304
12
8360
24
8528