Datasheet

DescriptionResetTypeNameBit/Field
AES-CTR Mode Counter Width
DescriptionValue
Counter is 32 bits0x0
Counter is 64 bits0x1
Counter is 96 bits0x2
Counter is 128 bits0x3
0RWCTR_WIDTH8:7
Counter Mode
This bit must also be set for GCM and CCM mode, when
encryption/decryption is required.
DescriptionValue
Counter mode is not enabled.0
Counter mode is enabled.1
0RWCTR6
ECB/CBC Mode
DescriptionValue
ECB mode0
CBC mode1
0RWMODE5
Key Size
DescriptionValue
reserved0x0
Key is 128 bits0x1
Key is 192 bits0x2
Key is 256 bits0x3
0RWKEY_SIZE4:3
Encryption/Decryption Selection
If set to DIRECTION=1, an encrypt operation is performed. If set to 0,
a decrypt operation is performed.
DescriptionValue
Decryption is selected.0
Encryption is selected.1
0RWDIRECTION2
Input Ready Status
DescriptionValue
Input buffer is not empty.0
Indicates that the 16-byte input buffer is empty, and the host is
permitted to write the next block of data.
1
0ROINPUT_READY1
December 13, 20131016
Texas Instruments-Advance Information
Advance Encryption Standard Accelerator (AES)