Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet

Product codes

AT91SAM9M10-G45-EK

468

SAM9M10 [DATASHEET]

6355F–ATARM–12-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.

—

WPVSRC

—

WPVS