Atmel Evaluation Kit AT91SAM9X35-EK AT91SAM9X35-EK Datenbogen
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Produktcode
AT91SAM9X35-EK
849
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
39.8.30 USART Write Protect Status Register
Name:
US_WPSR
Address:
0xF801C0E8 (0), 0xF80200E8 (1), 0xF80240E8 (2), 0xF80280E8 (3)
Access:
Read-only
Reset:
See
• WPVS: Write Protect Violation Status
0 = No Write Protect Violation has occurred since the last read of the US_WPSR register.
1 = A Write Protect Violation has occurred since the last read of the US_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.
Note:
been attempted.
Note:
Reading US_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