54.5.11 AES Additional Authenticated Data Length Register

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

Name: AES_AADLENR
Offset: 0x70
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
 AADLEN[31:24] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 2322212019181716 
 AADLEN[23:16] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 15141312111098 
 AADLEN[15:8] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 76543210 
 AADLEN[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bits 31:0 – AADLEN[31:0] 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.