本文介紹了一種基于PMC 背板標準的四通道通用DA 板的設計，采用了Xilinx 公
司的Spartan3 和PLX 公司的PCI9656 芯片。基于PMC 背板標準的設計，使得板卡的應用
更加靈活，既可以單獨使用，也可以作為母板的一個功能擴展。FPGA 增強了DA 板對數據進行回放的靈活性，而PCI9656 提供了64bit/66M 的PCI 接口，可以用來進行高速數據交換。通過DA 板，可實現對處理后數據的四路模擬輸出。
『關鍵詞』 DA PMC FPGA PCI9656
Four Channel Universal DA Board Based on PMC Standard Du Haibo Jiang Peihua Liu Guoman Gao Meiguo Abstract： This article introduces the design of a four channel universal DA board, which is based on PMC standard, apply the Spartan3 of Xilinx and PCI9656 of PLX. PMC standard makes the application of DA board more flexible. You can either use it independently or as an extended part of its motherboard. The use of FPGA enhances flexibility of data processing and output strategy, and PCI9656 provides an interface to PCI bus in 64bit/66M mode, which can be used to implement high speed data exchange. The four channel universal DA board, as is called, output four channel of the processed data to the DA chip to display.
Key words: DA PMC FPGA PCI9656