Channel status
INTR_CAUSE | Specifies the source of the interrupt cause: ‘0’: NO_INTR ‘1’: COMPLETION ‘2’: SRC_BUS_ERROR ‘3’: DST_BUS_ERROR ‘4’: SRC_MISAL ‘5’: DST_MISAL ‘6’: CURR_PTR_NULL ‘7’: ACTIVE_CH_DISABLED ‘8’: DESCR_BUS_ERROR ‘9’-‘15’: Not used. For error related interrupt causes (INTR_CAUSE is ‘1’, ‘2’, ‘3’, …, ‘8’), the channel is disabled (HW sets CH_CTL.ENABLED to ‘0’). |