Control Register (Crc_Cr); Crc Register Map; Table 21. Crc Calculation Unit Register Map And Reset Values - ST STM32F405 Reference Manual

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Bits 31:8 Reserved, must be kept at reset value.

Bits 7:0 General-purpose 8-bit data register bits

Can be used as a temporary storage location for one byte.

This register is not affected by CRC resets generated by the RESET bit in the CRC_CR

Control register (CRC_CR)

Address offset: 0x08

Reset value: 0x0000 0000

Bits 31:1 Reserved, must be kept at reset value.

Bit 0 RESET bit

Resets the CRC calculation unit and sets the data register to 0xFFFF FFFF.

This bit can only be set, it is automatically cleared by hardware.

The following table provides the CRC register map and reset values.

Data register

RM0090 Rev 18

CRC calculation unit

Independent data register

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