21.2.2 SYSC Write Protection Status Register

Name: SYSC_WPSR
Offset: 0x04
Reset: 0x00000000
Property: Read-only

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
 WVSRC[7:0] 
Access RRRRRRRR 
Reset 00000000 
Bit 76543210 
        WPVS 
Access R 
Reset 0 

Bits 15:8 – WVSRC[7:0] Write Violation Source

When bit WPVS is equal to 1, the field WVSRC indicates the register address offset at which a write access has been attempted.

Bit 0 – WPVS Write Protection Register Violation Status

WDT_CR, WDT_MR, RTT_MODR, RTC_IDR and RTC_IER can be write-protected but WPVS does not report any violation for these registers.
ValueDescription
0 No write protection violation has occurred since the last read of SYSC_WPSR.
1 A write protection violation has occurred since the last read of SYSC_WPSR. The associated violation is reported into field WVSRC.