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SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

The Cyclic Redundancy Check Calculation Unit (CRCCU) has its own DMA which functions as a Master with the Bus
Matrix. Three different polynomials are available: CCITT802.3, CASTAGNOLI and CCITT16. 



32-bit cyclic redundancy check automatic calculation 



CRC calculation between two addresses of the memory

AHB-Layer

Context FSM

AHB Interface

Host
Interface

Atmel
APB Bus

AHB SRAM

Data Register

Addr Register

HRDATA

HTRANS
HSIZE

CRC Register

Flash

External
Bus Interface