CRC Introduction 1/2

• CRC-based techniques are used to verify data integrity (communications)

• In functional safety standards (such as EN/IEC 60335-1), CRC peripheral

offers a means of verifying the embedded Flash memory integrity

• Single input/output 32-bit data register, but handles 8,16, 32-bits input data

size

• Input buffer for successive writes without stalling the bus.

• CRC computation done in 1 AHB clock cycle (HCLK) for each 8-bits data.

• General-purpose 8-bit register (can be used for temporary storage) not

affected by reset.