Transfer Types; Two-Cycle Transfer - NEC V850E/IA1 mPD703116 User Manual

6.6 Transfer Types

6.6.1 Two-cycle transfer

In two-cycle transfer, data transfer is performed in two cycles, a read cycle (source to DMAC) and a write cycle
(DMAC to destination).
In the first cycle, the source address is output and reading is performed from the source to the DMAC. In the
second cycle, the destination address is output and writing is performed from the DMAC to the destination.
Caution An idle cycle of 1 clock is always inserted between the read cycle and write cycle.
CHAPTER 6 DMA FUNCTIONS (DMA CONTROLLER)
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