CRCCNF

nRF5340 Product Specification

Address offset: 0x534

CRC configuration

Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID B B A A
Reset 0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID R/W Field Value ID Value Description
A

RW

LEN

[0..3]

CRC length in number of bytes

For MODE Ble_LR125Kbit and Ble_LR500Kbit, only LEN set to 3 is supported

Disabled

0

CRC length is zero and CRC calculation is disabled

One

1

CRC length is one byte and CRC calculation is enabled

Two

2

CRC length is two bytes and CRC calculation is enabled

Three

3

CRC length is three bytes and CRC calculation is enabled

B

RW

SKIPADDR

Include or exclude packet address field out of CRC calculation.

Include

0

CRC calculation includes address field

Skip

1

CRC calculation does not include address field. The CRC calculation will start at the first byte after the address.

Ieee802154

2

CRC calculation as per 802.15.4 standard. Starting at first byte after length field.