Datasheet

489
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
25.18.15 SMC ECC Parity Registers for 1 ECC per 512 Bytes for a Page of 512/2048/4096 Bytes, 9-bit Word
Name: SMC_ECC_PRx [x=0..7] (W9BIT)
Address: 0x400E0038 [2] .. 0x400E006C [15]
Access: Read-only
Reset: 0x00000000
Once the entire main area of a page is written with data, the register content must be stored at any free location of the
spare area.
• BITADDR: Corrupted Bit Address in the Page between (i x 512) and ((i + 1) x 512) - 1) Bytes
During a page read, this value contains the corrupted bit offset where an error occurred, if a single error was detected. If
multiple errors were detected, this value is meaningless.
• WORDADDR: Corrupted Word Address in the Page between (i x 512) and ((i + 1) x 512) - 1) Bytes
During a page read, this value contains the word address (9-bit word) where an error occurred, if a single error was
detected. If multiple errors were detected, this value is meaningless.
•NPARITY: Parity N
31 30 29 28 27 26 25 24
– – ––––––
23 22 21 20 19 18 17 16
NPARITY
15 14 13 12 11 10 9 8
NPARITY WORDADDR
7 6 543210
WORDADDR BITADDR