4.13.4.14 PUF Disable Functions Register

This register can only be written if the WPEN bit is cleared in the SFR Write Protection Mode Register.

CAUTION:

This register only allows to write ‘ones’ and forbids to write ‘zeros’. A chip reset is needed to clear this register.

The following configuration values are valid for all listed bit names of this register:

0: The operation is permitted.

1: The operation is forbidden.

Name: SFR_PUFDIS
Offset: 0x2208
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
    RESEEDLAB_TEST_MODETEST_MEMORYRECONSTRUCTWRAP_GENERATED_RANDOM 
Access R/WR/WR/WR/WR/W 
Reset 00000 
Bit 76543210 
 WRAPUNWRAPTEST_PUFSTOPSTARTGET_KEYGENERATE_RANDOMENROLL 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bit 12 – RESEED Reseed Operation

Bit 11 – LAB_TEST_MODE Lab Test Mode Operation

Bit 10 – TEST_MEMORY Test Memory Operation

Bit 9 – RECONSTRUCT Reconstruct Operation

Bit 8 – WRAP_GENERATED_RANDOM Wrap Generated Random Operation

Bit 7 – WRAP Wrap Operation

Bit 6 – UNWRAP Unwrap Operation

Bit 5 – TEST_PUF Test PUF Operation

Bit 4 – STOP Stop Operation

Bit 3 – START Start Operation

Bit 2 – GET_KEY Get Key Operation

Bit 1 – GENERATE_RANDOM Generate Random Operation

Bit 0 – ENROLL Enroll Operation