AES key register 0
| KEY | Cryptographic key, bits [31:0] These are bits [31:0] of the write-only bitfield KEY[255:0] AES encryption or decryption key, depending on the MODE[1:0] bitfield of the AES_CR register. Writes to AES_KEYRx registers are ignored when AES is enabled (EN bit set). A special writing sequence is required. In this sequence, any valid write to AES_KEYRx register clears the KEYVALID flag except for the sequence-completing write that sets it. Also refer to the description of the KEYVALID flag in the AES_SR register. |