Initial Crc Value (Crc_Init); Crc Register Map; Table 12. Crc Register Map And Reset Values - STMicroelectronics STM32F05 series Reference Manual

Cyclic redundancy check calculation unit (CRC)
5.4.4

Initial CRC value (CRC_INIT)

Address offset: 0x10
Reset value: 0xFFFF FFFF
31 30 29 28
15 14 13 12
Bits 31:0 CRC_INIT: Programmable initial CRC value
This register is used to write the CRC initial value.
5.4.5

CRC register map

Table 12. CRC register map and reset values
Offset Register
CRC_DR
0x00
Reset value 1
CRC_IDR
0x04
Reset value
CRC_CR
0x08
Reset value
CRC_INIT
0x10
Reset value 1
Refer to
66/742
27 26 25
11 10 9
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
Section 2.2.2 on page 37
Doc ID 018940 Rev 1
24 23 22
CRC_INIT[31:16]
rw
8 7 6
CRC_INI[15:0]
rw
Data register
1 1 1 1 1 1 1 1 1
CRC initial value
1 1 1 1 1 1 1 1 1
for the register boundary addresses.
21 20 19 18
5 4 3 2
1 1 1 1 1 1 1 1 1
Independent data register
0 0 0
0 0 0
1 1 1 1 1 1 1 1 1
RM0091
17 16
1 0
1 1 1 1 1
0 0 0 0 0
0
1 1 1 1 1