AES hardware accelerator (AES) RM0444
514/1390 RM0444 Rev 5
20.7.3 AES data input register (AES_DINR)
Address offset: 0x08
Reset value: 0x0000 0000
Only 32-bit access type is supported.
Bit 2 WRERR: Write error
This flag indicates the detection of an unexpected write operation to the AES_DINR register (during
computation or data output phase):
0: Not detected
1: Detected
The flag is set by hardware. It is cleared by software upon setting the ERRC bit of the AES_CR
register.
Upon the flag setting, an interrupt is generated if enabled through the ERRIE bit of the AES_CR
register.
The flag setting has no impact on the AES operation. Unexpected write is ignored.
Bit 1 RDERR: Read error flag
This flag indicates the detection of an unexpected read operation from the AES_DOUTR register
(during computation or data input phase):
0: Not detected
1: Detected
The flag is set by hardware. It is cleared by software upon setting the ERRC bit of the AES_CR
register.
Upon the flag setting, an interrupt is generated if enabled through the ERRIE bit of the AES_CR
register.
The flag setting has no impact on the AES operation. Unexpected read returns zero.
Bit 0 CCF: Computation completed flag
This flag indicates whether the computation is completed:
0: Not completed
1: Completed
The flag is set by hardware upon the completion of the computation. It is cleared by software, upon
setting the CCFC bit of the AES_CR register.
Upon the flag setting, an interrupt is generated if enabled through the CCFIE bit of the AES_CR
register.
The flag is significant only when the DMAOUTEN bit is 0. It may stay high when DMA_EN is 1.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
DIN[31:16]
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15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DIN[15:0]
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