38.5.15.1 Classic ADC Channels Only

The structure of data within the buffer is defined by ADC_MR, ADC_CHSR, ADC_SEQRx. See the figure Buffer Structure.

If the user sequence is not used (i.e., ADC_MR.USEQ is cleared), then only the value of ADC_CHSR defines the data structure. For each trigger event, enabled channels are consecutively stored in ADC_LCDR and automatically read to the buffer.

When the user sequence is configured (i.e., ADC_MR.USEQ is set), not only does ADC_CHSR modify the data structure of the buffer, but ADC_SEQRx registers may modify the data structure of the buffer as well.