Datasheet

57.5.11 AES Additional Authenticated Data Length Register
Name: AES_AADLENR
Offset: 0x70
Reset: 0x00000000
Property: Read/Write
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
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.
SAM E70/S70/V70/V71 Family
Advanced Encryption Standard (AES)
©
2019 Microchip Technology Inc.
Datasheet
DS60001527D-page 1812