AES_IV_0[n]

nRF5340 Product Specification

Address offset: 0x440 + (n × 0x4)

AES Initialization Vector (IV) to use in non-tunneling operations, or as the first tunnel stage IV in tunneling operations. The initial AES_IV_0[0] register holds the least significant bits [31:0] of the IV.

AES_IV_0 must be configured according to the selected AES mode:
  • AES CBC/CBC-MAC : Loaded with the IV.
  • XTS-AES : Loaded with the tweak value 'T'.

This register is a 'R/W change' register, as the written register values changes during processing.

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 A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A 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

VALUE

AES non-tunneling or first tunnel stage IV value.