Datasheet
818
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
36.8.23 USART Write Protection Status Register
Name: US_WPSR
Address: 0x400240E8 (0), 0x400280E8 (1)
Access: Read-only
Reset: See Table 36-16
• WPVS: Write Protection Violation Status
0: No write protection violation has occurred since the last read of the US_WPSR.
1: A write protection violation has occurred since the last read of the US_WPSR. If this violation is an unauthorized attempt to
write a protected register, the associated violation is reported into field WPVSRC.
• WPVSRC: Write Protection Violation Source
When WPVS = 1, WPVSRC indicates the register address offset at which a write access has been attempted.
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