This counter records how many times a mismatch was detected between the DMA channel 1 table and the DMA Memory Access Register. An administrator interprets a rising count as evidence of an internal DMA bookkeeping inconsistency on channel 1 that could lead to data being written to or read from the wrong memory location. For example, repeated misreads here alongside cntdot3DMAChan1RxErr reporting an address-mar error would confirm the channel 1 addressing hardware is unreliable.