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General Purpose & Bridge DMA
LeWiz provides a range of direct memory access controllers (DMA) and bus bridge IP cores. These are customizable to user’s SoC or design requirements. 3 classes of DMAs are offered:
* DMA-GP: DMA for general purpose applications (described in this datasheet)
* DMA-HP: Smart DMA for high performance applications such as high-speed Ethernet (See MAC-10G for description). This DMA makes the Ethernet interface looks more like a NIC device for Ethernet, thus much easier to work with for system development and offload CPU from handling Ethernet tasks for full bit rate performance.
* DMA-BR: DMA/Bus-Bridge combination to allow multiple peripherals or memory to connect to the SoC internal bus or complex PCI-express bus.
* DMA-GP: DMA for general purpose applications (described in this datasheet)
* DMA-HP: Smart DMA for high performance applications such as high-speed Ethernet (See MAC-10G for description). This DMA makes the Ethernet interface looks more like a NIC device for Ethernet, thus much easier to work with for system development and offload CPU from handling Ethernet tasks for full bit rate performance.
* DMA-BR: DMA/Bus-Bridge combination to allow multiple peripherals or memory to connect to the SoC internal bus or complex PCI-express bus.
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Block Diagram of the General Purpose & Bridge DMA IP Core
DMA controller IP
- PCIe 5.0 Controller with AMBA AXI interface
- PCIe 2.1 Controller supporting Root Port, Endpoint, Dual-mode Configurations, with Built-in DMA and Configurable AMBA AXI Interconnect
- PCIe 1.1 Controller supporting Root Port, Endpoint, Dual-mode Configurations, with Built-in DMA and Configurable AMBA AXI Interconnect
- Many-Channel Centralized DMA Controller with AMBA AXI Interface
- NAND Flash Memory Controller with DMA
- PCIe 3.0, 2.1, 1.1 Controller supporting Root Port, Endpoint, Dual-mode Configurations, with AMBA AXI User Interface