7.6.6.15 PUF Test Register

Name: PUF_TEST
Offset: 0x0D8
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
 BISTALLOW        
Access R/W 
Reset 0 
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
          
Access  
Reset  
Bit 76543210 
 BISTERRBISTOKBISTACTIVEBISTRUN   BISTEN 
Access R/WR/WR/WR/WR/W 
Reset 00000 

Bit 31 – BISTALLOW Built-In Self-Test Allowed

ValueDescription
0 BIST Start (BISTEN) command is disabled and has no effect.
1 BIST Start command (BISTEN) is allowed.

Bit 7 – BISTERR Built-In Self-Test Error

ValueDescription
0 No action
1 If BISTRUN=1 and BISTACTIVE=0, BIST has failed.

Bit 6 – BISTOK Built-In Self-Test Run Passed

ValueDescription
0 No action
1 If BISTRUN=1 and BISTACTIVE=0, BIST has passed successfully.

Bit 5 – BISTACTIVE Built-In Self-Test Activity Status

ValueDescription
0 BIST has completed if BISTRUN=1.
1 If BISTRUN=1, BIST is in progress.

Bit 4 – BISTRUN Built-In Self-Test Run Status

ValueDescription
0 BIST is not active or has not started yet.
1 BIST is enabled.

Bit 0 – BISTEN Built-In Self-Test Enable

ValueDescription
0 Disables the BIST, must be performed once BIST completion event occurred (BISTOK=1).
1 Starts the BIST.