I do not see the HADC/TMU reference in the datasheet and hardware reference manual for ADSP-2156x processor. Is this supported or not?
HADC/TMU are not supported in the ADSP-2156x processors for all silicon revisions. The HADC and TMU have known reliability risk which may cause the HADC/TMU to stop working on some parts over time. Analog Devices, Inc. does not support or guarantee the correct operation of the TMU at any time on the ADSP-21566/21567/21569 processors and the feature has been removed from the data sheet.