ST STM32F405 User Manual

RM0090 Rev 18 115/1749
RM0090 CRC calculation unit
115
4.4.3 Control register (CRC_CR)
Address offset: 0x08
Reset value: 0x0000 0000
4.4.4 CRC register map
The following table provides the CRC register map and reset values.
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
register.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
1514131211109876543210
Reserved
RESET
w
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.
Table 21. CRC calculation unit register map and reset values
OffsetRegister31-2423-1615-87654321 0
0x00
CRC_DR Data register
Reset
value
0xFFFF FFFF
0x04
CRC_IDR
Reserved
Independent data register
Reset
value
0x00
0x08
CRC_CR
Reserved
RESET
Reset
value
0

ST STM32F405 Specifications

General

Brand	ST
Model	STM32F405
Category	Computer Hardware
Language	English