SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
Figure 14-3 shows the CBC feedback mode of operation, where the input data is XORed with the initialization vector (IV) before it is passed to the basic crypto core. The output of the crypto core is passed directly to the output buffer. For decryption the operation is reversed, resulting in an XOR at the output of the crypto core.