Peripheral instantiation

nRF5340 Product Specification

The following table describes the abbreviations used in the Instance, Secure mapping, and DMA security columns of the instantiation table.

Table 1. Instantiation table abbreviations
Abbreviation Description
NS Trustzone/security attribute is Non-secure - The peripheral is accessible as a Non-secure peripheral.
S Trustzone/security attribute is Secure - The peripheral is accessible as a Secure peripheral.
US Trustzone Map is user selectable - The Trustzone/security attribute of the peripheral can be configured using SPU — System protection unit.
HF Trustzone Map is hardware fixed - The Trustzone/security attribute of the peripheral cannot be changed.
NA Not Applicable - Peripheral has no DMA capability.
NSA NoSeparateAttribute - Peripheral with DMA and DMA transfer has the same security attribute as assigned to the peripheral.
SA SeparateAttribute - Peripheral with DMA and DMA transfers can have a different security attribute than the one assigned to the peripheral.

The Secure mapping column in the following table defines configuration capabilities for the Arm® TrustZone® for Armv8-M secure attribute. The DMA security column describes the DMA capabilities of the peripheral.