High-performance PCIe-AXI Bridge and/or scatter-gather DMA The Northwest Logic Expresso DMA Bridge Core from Rambus provides high-performance DMA and/or bridging between PCI Express and AXI for both Endpoint and Root Port applications.
Key features include:
DMA operation
hard cores
• Supports memory-mapped/streaming (FIFO) DMA operation
• Can be configured with multiple DMA Channels which are
independently controlled by software
• Supports legacy, MSI, MSI-X and local AXI interrupts
Using the core eliminates the need for the user to implement
their own DMA and/or bridging design thus significantly reducing
development time and risk.
Linux Expresso DMA Drivers. The Expresso DMA Driver works