DEVICE, METHOD AND SYSTEM FOR TRANSPARENTLY CHANGING A FREQUENCY OF AN INTERCONNECT FABRIC

Techniques and mechanisms for transparently transitioning an interconnect fabric between a first frequency and a second frequency. In an embodiment, the fabric is coupled to an end point device via an asynchronous device. One or more nodes of the fabric operate in a first clock domain based on a clock signal, while the end point device operates in a different clock domain. Controller circuitry changes a frequency of the clock signal by stalling the clock signal throughout a first period of time which is greater than a duration of three cycles of a lower one of the first frequency or the second frequency. After the first period of time, cycling of the clock signal is provided at the second frequency. In another embodiment, the asynchronous device enables the frequency change without preventing communication with the end point device. 用于在第一频率和第二频率之间透明地转变互连架构的技术和机制。在一实施例中，架构经由异步设备耦合到端点设备。架构的一个或多个节点基于时钟信号在第一时钟域中操作，而端点设备在一不同的时钟域中操作。控制器电路通过在整个第一时间段中停滞时钟信号来改变时钟信号的频率，该第一时间段大于第一频率或第二频率中较低那个的三个周期的持续时间。在第一时间段之后，以第二频率提供时