Datasheet

337
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
21.8.7 Write Protect Status Register
Name: MATRIX_WPSR
Address: 0x400E05E8
Access: Read-only
For more details on MATRIX_WPSR, refer to Section 21.7 “Write Protect Registers” on page 327.
• WPVS: Write Protect Violation Status
0: No Write Protect Violation has occurred since the last write of MATRIX_WPMR.
1: At least one Write Protect Violation has occurred since the last write of MATRIX_WPMR.
• WPVSRC: Write Protect Violation Source
Should be written at value 0x4D4154 (“MAT” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
The protected registers are:
• “Bus Matrix Master Configuration Registers”
• “Bus Matrix Slave Configuration Registers”
• “Bus Matrix Priority Registers For Slaves”
• “Bus Matrix Master Remap Control Register”
• “System I/O Configuration Register”
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
WPVSRC
15 14 13 12 11 10 9 8
WPVSRC
76543210
–––––––WPVS