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Gowin PCIe SGDMA
The operating frequency of Gowin PCIe SGDMA IP is the same as that of Gowin PCI Express Controller IP. Users can flexibly configure the frequency according to data bandwidth requirements; typically, it is set to 100 MHz.
Features
- Supports Scatter-Gather DMA (SGDMA).
- Supports up to one H2C channel and one C2H channel.
- Within a single channel, different streams can be configured with different tags, enabling multiple streams to be transmitted over one channel.
- The SGDMA controller uses BAR0.
- The user interface uses BAR2; the host can directly read and write user-defined registers via PCIe BAR2.
- Supports 64-bit addressing.
- Supports AXI-Stream user interface.
- Supports scatter-gather descriptor lists with unlimited list size.
- Supports channel status write-back mode.