AHB multilayer priorities

nRF5340 Product Specification

Each master connected to the AHB multilayer is assigned a default natural priority.

Table 1. AHB bus masters
Bus master name Natural relative priority In/Out
CPU Highest priority I/O
Network core I/O
I2S I/O
PDM I
UARTE0, SPIM0, SPIS0, TWIM0, TWIS0 I/O
UARTE1, SPIM1, SPIS1, TWIM1, TWIS1 I/O
UARTE2, SPIM2, SPIS2, TWIM2, TWIS2 I/O
UARTE3, SPIM3, SPIS3, TWIM3, TWIS3 I/O
SAADC I
PWM0 O
PWM1 O
PWM2 O
PWM3 O
SPIM4 I/O
NFCT I/O
CC312 I/O
USBD I/O
QSPI Lowest priority I/O