MODE

nRF5340 Product Specification

Address offset: 0x504

Operation mode

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 C B B A
Reset 0x00000001 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 1
ID R/W Field Value ID Value Description
A-

RW

MODE

The mode of operation to be used. Settings in this register apply whenever either the KSGEN task or the CRYPT task is triggered.

Encryption

0

AES CCM packet encryption mode

Decryption

1

AES CCM packet decryption mode

B

RW

DATARATE

Radio data rate that the CCM shall run synchronous with

1Mbit

0

1 Mbps

2Mbit

1

2 Mbps

125Kbps

2

125 kbps

500Kbps

3

500 kbps

C

RW

LENGTH

Packet length configuration

Default

0

Default length. Effective length of LENGTH field in encrypted/decrypted packet is 5 bits. A keystream for packet payloads up to 27 bytes will be generated.

Extended

1

Extended length. Effective length of LENGTH field in encrypted/decrypted packet is 8 bits. A keystream for packet payloads up to MAXPACKETSIZE bytes will be generated.