SLAZ473AG October   2012  – August 2021 MSP430FR5969 , MSP430FR5969-SP

 

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6.23 DMA11

DMA Module

Category

Functional

Function

DMA trigger during transition into LPM1/LPM2/LPM3/LPM4 may cause the device to reset

Description

The device performs a PUC if the DMA is triggered while the system transitions the power mode from active to LPM1/LPM2/LPM3/LPM4. The susceptible time window at power mode transition is 1 MCLK cycle + 500ns.

Workaround

Ensure that the DMA is not triggered during active mode to LPM1/LPM2/LPM3/LPM4 transition.

1. Perform a software DMA trigger inside a module interrupt service routine instead of using the modules DMA trigger.

OR

2. Use Active Mode or LPM0 when using DMA.