Superior Architecture

The GDA PCI Express*-AMBA AXI Bridge (PCIe-AXI Bridge) is a highly flexible and configurable IP with a PCI Express interface on one side and an AMBA AXI interface on the system side. The Bridge has been architectured to interface with a PCI Express controller used as an end-point or root-complex type devices. The PCIe-AXI BRIDGE uses high speed multi-channel DMA controllers to match the bandwidth requirements of the PCIe Gen2 solution.

The GDA PCI Express-AXI Bridge is a simple, configurable and layered architecture, independent of applications, implementation tools or target technology. The controller architecture is carefully tailored to optimize latency, power consumption, and silicon footprint, making it ideal for cost and performance sensitive applications. The PCIe-AXI BRIDGE solution provides highly scalable bandwidth through a configurable data path width and clock frequency.

Most Thoroughly Verified and Interoperable Design

The GDA PCIe-AXI BRIDGE is an exhaustively verified solution tested with high coverage design specific as well as random tests. The IP is verified with leading AXI verification IP and the verification environment can be configured to run with all the major simulators. The reusable block level verification environment and the formal verification methodology enhance the quality of verification process and add more confidence to the design verification

The GDA PCI Express-AXI Bridge solution leverages years of experience in creating reusable IP solutions for Ethernet, RapidIO and PCI Express technologies. The expertise in creating those system validated solutions with RTL, synthesis,
simulation, board and software elements ensures delivery of lower risk, compliant and interoperable solution

Ease of Integration

The GDA PCI Express- AXI Bridge design is fully synchronous and adheres to standard synthesis, test insertion and physical design practices. The solution allows licensees to easily migrate among COT, FPGA, Gate array, structured ASIC and Standard cell technologies. The design with its flexible user logic interface can be easily integrated into a wide range of applications.

Superior Support

The PCIe-AXI BRIDGE solution comes with a superior support model that offers round the clock telephone, email, web based support and free code updates during the support period. Support documents including a data sheet, design guide, verification guide, synthesis guide and application notes are also offered. To build a full-system solution the GDA partner eco-system provides access to additional components such as verification IP, PHYs and related design services.

Design Configurability

The design offers enormous hardware and software configurable options allowing the user to choose the optimal solution to meet his requirement. The configuration options include,

• PIO, DMA or mixed mode of operation
• Up to 8 Read and Write DMA supported
• Up to 8 PCI Express capable AXI Slave PIO devices supported
• Up to 8 AXI capable PCI Express PIO devices supported
• Maximum DMA transfer size of 1 MB
• Register based or Chain Descriptor based DMA types
• Priority level transaction initiations by different DMA/PIO devices
• Priority level of the different DMA/PIO devices to initiate transaction
• Programmable address mapping for PIO transfers
• Programmable PCI Express tags reserved for each DMA/PIO device
• PCI Express or AMBA hosted DMA accesses
• AXI or APB register space accesses
• System clock frequency
• Synchronous/Asynchronous reset

• Verilog RTL
• Behavioral test bench and test cases
• AXI, PCI Express and Application BFM
• ASIC Synthesis environment
• Documentation