The AXI Direct Memory Access (AXI DMA) IP provides high-bandwidth direct memory access between memory and AXI4-Stream-type target peripherals. Its optional scatter gather capabilities also offload data movement tasks from the Central Processing Unit (CPU) in processor based systems. Initialization, status, and management registers are accessed through an AXI4-Lite slave interface.
Key Features and Benefits
- AXI4 compliant
- Optional Scatter/Gather (SG) DMA support. When Scatter/gather mode is not selected the IP operates in Simple DMA mode.
- Primary AXI4 Memory Map and AXI4-Stream data width support of 32, 64, 128, 256, 512, and 1024 bits
- Optional Data Re-Alignment Engine
- Optional AXI Control and Status Streams
- Optional Keyhole support
- Optional Data Re-Alignment support
- Optional Micro DMA support