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S3C2410A DMA
] 8-1
8 DMA
OVERVIEW
The S3C2410A supports four-channel DMA controller that is located between the system bus and the peripheral bus.
Each channel of DMA controller can perform data movements between devices in the system bus and/or peripheral
bus with no restrictions. In other words, each channel can handle the following four cases: 1) both source and
destination are in the system bus, 2) the source is in the system bus while the destination is in the peripheral bus,
3) the source is in the peripheral bus while the destination is in the system bus, and 4) both source and destination
are in the peripheral bus.
The main advantage of the DMA is that it can transfer the data without CPU intervention. The operation of DMA can
be initiated by software, or requests from internal peripherals or external request pins.