NXP Semiconductors K32 L2A Series, Reference Manual, Page: 329 / 1379

CAUx_CASR field descriptions (continued)
Field Description
0
IC
Illegal Command
Indicates an illegal instruction has been executed.
0 No illegal commands issued.
1 Illegal command issued.
15.5.2 Accumulator (CAUx_CAA)
Commands use the CAU accumulator for storage of results and as an operand for the
cryptographic algorithms.
Address: F000_5000h base + 1h offset = F000_5001h
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
ACC
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
CAUx_CAA field descriptions
Field Description
ACC Accumulator
Stores results of various CAU commands.
15.5.3 General Purpose Register (CAUx_CAn)
The General Purpose Register is used in the CAU commands for storage of results and as
operands for various cryptographic algorithms.
Address: F000_5000h base + 2h (1d × i), where i=0d to 8d
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
CAn
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
CAUx_CAn field descriptions
Field Description
CAn General Purpose Registers
Used by the CAU commands. Some cryptographic operations work with specific registers.
Chapter 15 Cryptographic Acceleration Unit (CAU)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 329