XI邊界掃描模塊接口電路的設計:根據IEEE1149．X標準和VXI總線規范，采用EDA技術對VXI邊界掃描模塊的接口電路進行了研究和設計，通過仿真和實際測試驗證了設計的正確性，很好地將VXI總線技術和邊界掃描技術融合在一起，成功研制了一種符合IEEE1149．X標準的c尺寸VXI邊界掃描模塊。在VXI總線測試領域拓展了邊界掃描測試功能，不增加測試系統的成本和復雜性，解決了VXI總線應用領域集成電路的測試問題。
關鍵詞：VXI模塊；邊界掃描；接口電路

Abstract：In this paper，according to IEEE Stdl149．X and VXIbus specification，the interface circuit of BS(Boundary Scan)module on Vxibus is studied an d designed by using EDA technology ．The design results arc verified by simulating an d testing．In addition，its correctness also shows that VXIbus technology Call be well combined with BS techn ology ．And a kind of VXI BS C-size module conforming to IEEE Stdl 149．X is developed．So the function of boundary SCan is expanded in VXIbus test field，and it Can resolve the problem of integrated circuit test in the test field of VX1 without increasing the cost and complexity of system ．
Key words：VXI module；BS；interface circuit