[109] DMA: DMA access transfers might be corrupted

It was inherited from the previous IC revision Revision 2.

Symptoms

The first byte sent out by the peripheral is sometimes wrong.

Conditions

System enters IDLE and stops the 64 MHz clock at the same time as the peripheral that is using DMA is started. This problem affects the peripherals PWM, SPIS, SPIM, TWIS, UARTE, and TWIM.

Consequences

Wrong data sent to external device.

Workaround

Workarounds will be incorporated into SDK v13.0.0. See the following document for a description of the workarounds:

nRF52832 Errata Attachment Anomaly 109 Addendum