ADMA_CONTROL
writew(aPIOMD4 | aNIEN | aRSTADM, chan + ADMA_CONTROL);
writew(aPIOMD4, chan + ADMA_CONTROL);
writew(aPIOMD4, chan + ADMA_CONTROL);
writew(aPIOMD4 | aNIEN | aRSTADM, chan + ADMA_CONTROL);
writew(aPIOMD4 | aNIEN, chan + ADMA_CONTROL);
writew(aPIOMD4 | aGO, chan + ADMA_CONTROL);