Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
490
25.18.16 SMC ECC Parity Registers for 1 ECC per 256 Bytes for a Page of 512/2048/4096 Bytes, 8-bit Word
Name: SMC_ECC_PRx [x=0..15] (W8BIT)
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 256) 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 256) and ((i + 1) x 512) - 1) Bytes
During a page read, this value contains the word address (8-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
0NPARITY
15 14 13 12 11 10 9 8
NPARITY 0 WORDADDR
7 6 543210
WORDADDR BITADDR