Crc Polynomial Register: High 0 (Crc_Ph0) - NXP Semiconductors MC9S08SU16 Reference Manual

16.3.6 CRC Polynomial Register: High 0 (CRC_PH0)

This set of registers contains the value of polynomial for the CRC calculation. The
registers of PH1:PH0 contain the upper 16 bits of CRC polynomial, which are only used
in 32-bit CRC mode. Writes to PH1:PH0 are ignored in 16-bit CRC mode. The registers
of PL1:PL0 contain the lower 16-bits of CRC polynomial, which are used in both 16- and
32-bit CRC modes.
Address: 1890h base + 5h offset = 1895h
Bit 7
Read
Write
Reset 0
Field
PH0 CRC Polynomial Bits 23:16
16.3.7 CRC Polynomial Register: Low 1 (CRC_PL1)
This set of registers contains the value of polynomial for the CRC calculation. The
registers of PH1:PH0 contain the upper 16 bits of CRC polynomial, which are only used
in 32-bit CRC mode. Writes to PH1:PH0 are ignored in 16-bit CRC mode. The registers
of PL1:PL0 contain the lower 16-bits of CRC polynomial, which are used in both 16- and
32-bit CRC modes.
Address: 1890h base + 6h offset = 1896h
Bit 7
Read
Write
Reset
0
Field
PL1 CRC Polynomial Bits 15:8
NXP Semiconductors
6 5
0 0
CRC_PH0 field descriptions
6 5
0 0
CRC_PL1 field descriptions
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
Chapter 16 Cyclic redundancy check (CRC)
4 3
PH0
0 0
Description
4 3
PL1
1 0
Description
2 1
0 0
2 1
0 0
0
0
0
0
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