CIDR1

nRF5340 Product Specification

Address offset: 0xFF4

Component ID1 Register

The CIDR1 register is a component identification register that indicates the presence of identification registers. This register also indicates the component class.

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 B B A A A A
Reset 0x00000090 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 0 0 1 0 0 0 0
ID R/W Field Value ID Value Description
A

R

PRMBL_1

Preamble[1]. Contains bits[11:8] of the component identification code.

Value

0

Bits[11:8] of the identification code.

B

R

CLASS

Class of the component, for example, whether the component is a ROM table or a generic CoreSight component. Contains bits[15:12] of the component identification code

Coresight

9

Indicates that the component is a CoreSight component.