SG DMA Controller, 1-16 DMA Channels, AHB5 Master Interface

Overview

Key Features

• 1 - 16 Multi-Channel High Performance DMA Controller Engines:
  • High-Speed Finite State Machine Control
  • Up to 16 DMA transfers operational in parallel
  • High Throughput to/from Memory via AMBA AHB on both small and large data sets
  • Dual-Port, Single-Clock FIFO, user parameterized in Depth x Width.
  • Optional Dual-Port, Dual-Clock FIFO design
  • Optional external single memory interface for all DMA Multi-Channels
  • Fixed number of DMA Multi-Channel releases at lower licensing cost
• Contact Digital Blocks about our configurable DB-DMAC-MC-AHB with 1 to 256 DMA Channels.
• DMA releases with either AMBA AHB5 or AHB-Lite supported
• Supports following DMA transfers:
  • Memory-to-Memory
  • Memory-to-Peripheral
  • Peripheral-to-Memory
  • Peripheral-to-Peripheral
• Scatter Gather List (SGL):
  • processing of linked-list Descriptor nodes
  • supports non-contiguous data block transfers to a contiguous segment of memory and vice versa
• Variety of User DMA Transfer Control:
  • Link-List Processor for Autonomous & Chained Block Transfers (SGL)
  • CPU Software or external Hardware initiated transfers
• Targets CPU DMA & PCIe DMA Controller in Linux environment as well as applications with standard peripherals or unique peripheral data transfer requirements
• Arbiter – Round Robin (priority Arbitration Modes available – contact Digital Blocks)
• Individual Interface Data Widths: 8 / 16 / 32 / 64 / 128 / 256 / 512 / 1024.
• Programmable Data Burst Capability: 1, 4, 8, 16 and up to 256 via AHB
• Interrupt Controller – Signaling DMA Status - Transfer Done & Diagnostics
• Fully-synchronous, synthesizable Verilog RTL core, with rising-edge clocking, no gated clocks, and no internal tri-states, for easy integration into FPGA or ASIC design flows.

Block Diagram

Deliverables

• Verilog RTL Source or technology-specific netlist.
• Comprehensive testbench suite with expected results.
• Synthesis scripts.
• Installation & Implementation Guide.
• Technical Reference Manual.

Technical Specifications