Ads posted this a couple days ago from the Alliacense web site. Speed doesn't matter they say! US'336: Clocking CPU and I/O Separately The MMP Portfolio is not limited to "high speed" microprocessors. In fact, during the past year of intense study of hundreds of various microprocessor designs, no correlation at all has been found between the speed of a microprocessor and the application of US'336. Use of US'336 is prevalent across most microprocessors from low speed microcontrollers to sophisticated systems on chips. Advertised advantages include: cost reduction, instant-on execution, failsafe operation, EMI reduction, and power savings. It is a modern requirement from a design for test ("DFT") perspective. http://www.alliacense.com/licensing/mmpBackground.html