Datasheet

497
SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
29.6.32 PIO Write Protect Status Register
Name: PIO_WPSR
Address: 0xFFFFF2E8 (PIOA), 0xFFFFF4E8 (PIOB), 0xFFFFF6E8 (PIOC), 0xFFFFF8E8 (PIOD),
0xFFFFFAE8 (PIOE)
Access: Read-only
• WPVS: Write Protect Enable
0: No Write Protect Violation has occurred since the last read of the PIO_WPSR.
1: A Write Protect Violation occurred since the last read of the PIO_WPSR. If this violation is an unauthorized attempt to
write a protected register, the associated violation is reported into field WPVSRC.
• WPVSRC: Write Protect Violation Source
When WPVS is active, this field indicates the write-protected register (through address offset or code) in which a write
access has been attempted.
Note: Reading PIO_WPSR automatically clears all fields.
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