The present invention relates to the testing of functional or IP cores forming part of a system on chip, SoC. The invention is implemented using a testing means and a communication means to test at least one functional or IP core. The testing means comprises a wrapper in which the core is embedded, this...http://www.google.com.hk/patents/US7725784?utm_source=gb-gplus-share專利 US7725784 - Integrated circuit chip with communication means enabling remote control of testing means of IP cores of the integrated circuit