SAM3X8C Atmel Corporation, SAM3X8C Datasheet - Page 694

• Manufacturer Part Number: SAM3X8C
• Manufacturer: Atmel Corporation

32.7.5
694
694
SAM3X/A
SAM3X/A
Write Protected Registers
To prevent any single software error that may corrupt SPI behavior, the registers listed below
can be write-protected by setting the WPEN bit in the SPI Write Protection Mode Register
(SPI_WPMR).
If a write access in a write-protected register is detected, then the WPVS flag in the SPI Write
Protection Status Register (SPI_WPSR) is set and the field WPVSRC indicates in which register
the write access has been attempted.
The WPVS flag is automatically reset after reading the SPI Write Protection Status Register
(SPI_WPSR).
List of the write-protected registers:
Section 32.8.2 ”SPI Mode Register”
Section 32.8.9 ”SPI Chip Select Register”
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12