32.5.2 Accumulator (CAU_CAA)
Commands use the CAU accumulator for storage of results and as an operand for the
cryptographic algorithms.
Address: CAU_CAA is E008_1000h base + 1h offset = E008_1001h
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
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
CAU_CAA field descriptions
Field
Description
31–0
ACC
Accumulator
Stores results of various CAU commands.
32.5.3 General Purpose Register (CAU_CA)
The general purpose register is used in the CAU commands for storage of results and as
operands for the various cryptographic algorithms.
Addresses: CAU_CA0 is E008_1000h base + 2h offset = E008_1002h
CAU_CA1 is E008_1000h base + 3h offset = E008_1003h
CAU_CA2 is E008_1000h base + 4h offset = E008_1004h
CAU_CA3 is E008_1000h base + 5h offset = E008_1005h
CAU_CA4 is E008_1000h base + 6h offset = E008_1006h
CAU_CA5 is E008_1000h base + 7h offset = E008_1007h
CAU_CA6 is E008_1000h base + 8h offset = E008_1008h
CAU_CA7 is E008_1000h base + 9h offset = E008_1009h
CAU_CA8 is E008_1000h base + Ah offset = E008_100Ah
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
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
CAU_CAn field descriptions
Field
Description
31–0
CAn
General purpose registers
Used by the CAU commands. Some cryptographic operations work with specific registers.
Chapter 32 Memory-Mapped Cryptographic Acceleration Unit (MMCAU)
K53 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
779
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