ST STM32L0x3

Cyclic redundancy check calculation unit (CRC) RM0367
128/1043 RM0367 Rev 7
4.4.4 CRC initial value (CRC_INIT)
Address offset: 0x10
Reset value: 0xFFFF FFFF
4.4.5 CRC polynomial (CRC_POL)
Address offset: 0x14
Reset value: 0x04C1 1DB7
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
CRC_INIT[31:16]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CRC_INIT[15:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:0 CRC_INIT[31:0]: Programmable initial CRC value
This register is used to write the CRC initial value.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
POL[31:16]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
POL[15:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:0 POL[31:0]: Programmable polynomial
This register is used to write the coefficients of the polynomial to be used for CRC
calculation.
If the polynomial size is less than 32 bits, the least significant bits have to be used to program
the correct value.