For all error types other than chan

For all error types other than channel priority error, the channel number causing the erroris recorded in the Error Status register (DMAx_ES). If the error source is not removedbefore the next activation of the problem channel, the error is detected and recordedagain.If priority levels are not unique, when any channel requests service, a channel priorityerror is reported. The highest channel priority with an active request is selected, but thelowest numbered channel with that priority is selected by arbitration and executed by theeDMA engine. The hardware service request handshake signals, error interrupts, anderror reporting is associated with the selected channel