AES_AADLENR

AES Additional Authenticated Data Length Register

  0x70 32 Read/Write 0x00000000  
Parent topic: Register Summary

AES Additional Authenticated Data Length Register

Bit  31 30 29 28 27 26 25 24  
  AADLEN[31:24]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  0 0 0 0 0 0 0 0  
Bit  23 22 21 20 19 18 17 16  
  AADLEN[23:16]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  0 0 0 0 0 0 0 0  
Bit  15 14 13 12 11 10 9 8  
  AADLEN[15:8]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  0 0 0 0 0 0 0 0  
Bit  7 6 5 4 3 2 1 0  
  AADLEN[7:0]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  0 0 0 0 0 0 0 0  

Bits 31:0 – AADLEN[31:0]: Additional Authenticated Data Length

Additional Authenticated Data Length

Length in bytes of the Additional Authenticated Data (AAD) that is to be processed.

Note: The maximum byte length of the AAD portion of a message is limited to the 32-bit counter length.