Hi, if I understand you well, this is question related to serialized input/output.
Certain DSPI modules implement this feature for eTPU and eMIOS, routing is managed by SIU module.
eQADC module does not have direct connection to DSPI. If you need to serialize results of analog to digital conversions, you may use eDMA module to transmit ADC result to DSPI output buffer.
