Datasheet

468
SAM9M10 [DATASHEET]
6355FATARM12-Mar-13
30.6.32 PIO Write Protect Status Register
Name: PIO_WPSR
Addresses: 0xFFFFF2E8 (PIOA), 0xFFFFF4E8 (PIOB), 0xFFFFF6E8 (PIOC), 0xFFFFF8E8 (PIOD),
0xFFFFFAE8 (PIOE)
Access: Read-only
Reset Value: See Table 30-2
WPVS: Write Protect Enable
0 = No Write Protect Violation has occurred since the last read of the PIO_WPSR register.
1 = A Write Protect Violation occurred since the last read of the PIO_WPSR register. 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