Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

Product codes

AT91SAM9N12-EK

842

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

40.8.30 USART Write Protect Status Register

Name:

US_WPSR

Addresses:

0xF801C0E8 (0), 0xF80200E8 (1), 0xF80240E8 (2), 0xF80280E8 (3)

Access:

Read-only

Reset:

See

Table 40-17

• WPVS: Write Protect Violation Status

0: No Write Protect Violation has occurred since the last read of the US_WPSR.

1: A Write Protect 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 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 US_WPSR automatically clears all fields.

—

WPVSRC

—

WPVS