SWCU185G January 2018 – June 2024 CC1312PSIP , CC1312R , CC1352P , CC1352R , CC2642R , CC2642R-Q1 , CC2652P , CC2652PSIP , CC2652R , CC2652RB , CC2652RSIP , CC2662R-Q1
If the system bus is turned off, the I2S DMA loses access to RAM and flash.
The system bus is turned off if all of the following conditions are true:
For lowest current consumption, set PRCM:SECDMACLKGDS.DMA_CLK_EN = 1 (loaded with PRCM:CLKLOADCTL) to keep the system bus enabled for the I2S DMA.