DMA Controller

DTI_DMA control the DMA transfers data between different points in the memory space without intervention of the CPU. The DMA is generally used to replace two CPU functions: memory copy and transfer data between memory and peripheral (peripheral devices such as SPI, UART, GPIO, I2C, I2S, WDT, etc.)

• Support 1 to 16 channels (Parameter Configuration)
• Support maximum 8 peripherals can connect to 1 DMA channel (Parameter Configuration)
• Channel Arbitration
• Multiple transfer direction: memory to memory, memory to peripheral, peripheral to memory
• Single APB Programming Interface (Programming Registers)
• 2 AXI4 Master Ports (Parameter Configuration)
• Asynchronus AXI4/APB Interfaces
• AXI4 Data Width: 32, 64, 128, 256 or 512 bits (Parameter Configuration)
• AXI4 Address Width: Up to 32 bits (Parameter Configuration)
• Support source address, destination address, data tran unaligned with AXI4 data size
• Single FIFO data per channel
• Automatic packing/unpacking of data to fit FIFO width
• Support timeout monitoring
• Data swapping endian mode
• Interrupt for DMA transfer and channel status
• Support Scatter-Gather mode
• Support Circular mode
• Support Double Buffer mode
• Support 1D-2D transfer mode