基于TAP.7适配器的电源管理技术的研究

Research of Power Management Technology Based on TAP.7 Adapter

IEEE1149.7标准的提出对系统芯片在测试过程中出现的片上多TAPC、测试功耗急剧增加等难题提供了有效的解决办法;现有TAP.1器件通过添加基于IEEE 1149.7标准设计的TAP.7适配器后,使其具有TAP.7协议接口并支持TAP.7测试架构,从而可利用TAP.7架构对其进行测试;文章重点介绍了TAP.7适配器中的电源管理技术的原理及其模块实现过程;最后基于Quartus II平台及Modelsim进行了该功能模块的仿真验证,结果表明该电源管理模块能够有效地对TAP.7控制器的电源进行控制。

IEEE Standard 1149.7 has been released to effectively address new challenges that are arising in the testing process of the system-on-chip,such as multiple TAPCs on a single chip,the dramatic increase in power consumption.Based on IEEE Std 1149.7,TAP.7 adapter was designed and then was used to adapt an existing TAP.1 device to provide TAP.7 interfaces and support TAP.7 test architecture so that this device can be tested by TAP.7 architecture.This paper focuses on the principle of power management technology and how to implement this module within TAP.7 adapter.Finally,the functional module is simulated and validated based on Quartus Ⅱ and Modelsim.The results indicate that this power management functional module works out in controlling TAP.7 controller power.