[109] DMA: DMA access transfers might be corrupted

This anomaly applies to IC Rev. Rev 1, build codes QFAA-B00, QFAB-B00, CIAA-B00.

It was inherited from the previous IC revision Engineering C.


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


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.


Wrong data sent to external device.


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