Datasheet

459
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
25.16.4.2 NFC SRAM Access Prioritization Algorithm
When the NAND Flash Controller (NFC) is reading from or writing to the NFC SRAM, the internal memory is no
longer accessible. If an NFC SRAM access occurs when the NFC performs a read or write operation then the
access is discarded. The write operation is not performed. The read operation returns undefined data. If this
situation is encountered, the status flag AWB located in the NFC status Register is raised and indicates that a
shared resource access violation has occurred.
25.16.5 NAND Flash Operations
This section describes the software operations needed to issue commands to the NAND Flash device and perform
data transfers using NFC.
0x00001030-0x0000103F Bank 0 Spare Area 3 Read-write
0x00001040-0x0000104F Bank 0 Spare Area 4 Read-write
0x00001050-0x0000105F Bank 0 Spare Area 5 Read-write
0x00001060-0x0000106F Bank 0 Spare Area 6 Read-write
0x00001070-0x0000107F Bank 0 Spare Area 7 Read-write
0x00001080-0x00001FFF Reserved –
Table 25-10. NFC SRAM Mapping with NAND Flash Page Size of 4 Kbytes + 128 bytes
Offset Use Access