There are three modes of DMA operation: 1. Burst mode DMA, 2. Transparent mode 3. Cycle stealing modeCycle stealing mode: In this mode, only one word of data transferred in a single request, after one word of data transfer, the control of the system bus is given back to the CPUtransferring one byte of data per request, until the entire block of data has been transferred. Important Points: If the system is byte-addressable then 1 word is equal to 1 byte