Reusable, low-cost, and flexible multidrop system JTAG architecture

被引:0
|
作者
Lihn, Hung-chi [1 ]
机构
[1] Brocade Commun Syst Inc, San Jose, CA USA
关键词
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A reusable, low-cost, and flexible multidrop system JTAG(1) architecture has been developed at Brocade as an alternative to more expensive commercial solutions. This architecture allows JTAG operations to be driven by a local on-board processor or an external host. An add-drop network design allows all on-board JTAG devices to be grouped into several smaller chains and enables the chains to be combined flexibly for various JTAG operations. By implementing this architecture in a low-cost Complex Programmable Logic Device (CPLD), it has been used in stand-alone single-board systems as well as complex multiboard chassis systems at Brocade.
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页码:322 / 331
页数:10
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