The PL-1061 is a low-cost high-performance single chip mobile computing system solution. With a powerful 32-bit RISC CPU core and a wide range of hardware controlled peripheral interfaces, it is capable of handling most mobile computing applications' requirements. The PL-1061 is designed to cover both low power consumption and high performance applications at the same time. The software could change the system clock rate and CPU clock rate on the run. It gives the applications extra edges on delivering the most computation power when needed and preserve power when the circumstances allowed.