What is the need for DMAC in ES?

Direct memory admittance is chiefly utilized to master the limitations of interrupt and program-controlled I/O. DMA modules habitually take the handle across from the processor and execute the memory performances and this is chiefly because to prevent the mismatch in the processing rates of I/O systems and the processor. This is relatively faster.

It is an essential part of each installed arrangement, and the purpose of their advantage is that they may be utilized for erupted data alterations instead of single-byte access. It has to pause for the arrangements means such as the operation bus in circumstance it is previously in charge of it.