Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Scheda Tecnica
Codici prodotto
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)
0xFFFFFAE8 (PIOE)
Access:
Read-only
Reset Value:
See
• 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.
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.
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
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
WPVS