SD Card Controller On PCIE BUS BASED On FPGA

As the consumer electronic media terminal development, loaded in the terminal product platform applications increasingly rich content, From the original support for the ordinary image, audio, video, game now ultra clear pixel image, high resolution rate audio files, the movie, the large3D games etc. The consumers’demand of portable multimedia product storage capacity and the transmission speed is highly increasing. Since the portable multimedia device development tends to multifunction and miniaturization, so can integrated storage capacity is limited. Therefore, in the multimedia device extends out of the memory card interface becomes equipment to solve their limited capacity the most economic and practical method. On the market at present, the most widely used is the memory SD card Along with the multimedia platform for hardware requirements increase, the SD card is developing more and more quickly. In order to make large capacity, high transmission rate of the SD card function gets sufficient play, a good solution is in the multimedia processor integrated on a high-speed SD card interface controller.PCI Express is a new generation of bus interface, Early in the spring of2001, the Intel company put forward to a new generation of technology to replace the PCI bus and multiple chip internal connections, and is called the third generation I/O bus technology. It uses the industry popular point-to-point serial connection, compared with PCI and early computer bus shared parallel architecture, Each device has its own dedicated connection, does not need to the whole bus request bandwidth, but also can make the data transmission rate to a very high frequency, to achieve PCI cannot provide high bandwidth.FPGA (Field Programmable Gate Array), namely the field programmable logic gate array, which belongs to a kind of programmable logic device, From nineteen ninties, after20years of development, has become the mainstream of the digital system design platform. The current FPGA chip size and processing capacity has reached Soc design level, the index is not only a single logical unit number, and into the embedded core formation.This design is a PCIE based on the high speed bus SD card controller core. Through the analysis of the working principle and the SD card of PCIE bus communication principle, through the realization of FPGA controller chip IP design.