The Arasan PCI Express End Point is a high-speed, high-performance, and low-power IP core that is fully compliant to the PCI Express Specification 1.1 and 2.0. The IP core is designed for applications in computing, networking, storage, servers, wireless, and consumer electronics. The feature-rich IP core is highly configurable that allows a target design to be implemented with the least number of gates and highest performance.
The highly configurable PCIe End point IP core supports x1, x2, and x4 lane with a selection of 32/64-bit data path. Depending on design requirements, a maximum of 8 VCs and 8 TCs are supported. The IP core consists of many useful features that can be included to enhance system performance and to address special design needs in different applications. The data link layer allows the configuration of infinite credits to boost the flow control efficiency. By-pass mode, cut-through mode, and store-and-forward mode are other optional items. The transport layer features include configurable ECRC generation and checking, support for up to 64 configurable outstanding non-posted requests, and configurable payload size from 128 to 4 Kbytes.
The Arasan PCI Express End Point IP has an 8/16-bit PIPE compliant physical layer interface that can be connected directly to any standard PHY such as the Philips PX1011A, PX1012A, or similar PHY devices. The Arasan PCIe End Point IP core together with the PHY provides a flexible PCI Express end point solution with additional features such as polarity inversion, lane reversal, beacon and wake-up mechanisms, link training LTSSM, and link speed negotiation.
Multi-functions are supported by inclusion of the function control blocks with its registers and FIFOs. Additional features include hot-plug and hot-swap capability, legacy PCI, MSI, and MSI-X interrupts, ASPM and software controlled power management, advance error reporting, power budget capability, etc.