| 摘要 |
A method and an activity tracking device for controlling clock gating of data processing block is described, which processing block is one of a plurality of data processing blocks of a circuitry system which are interconnected by a streaming data bus. The activity tracking device receives a busy indication from processing units and streaming data bus segments of the data processing block to keep track of the data transfer and processing activity therein, and has an output connected to a clock gate at the root of the local clock distribution network of the data processing block to gate off the clock of the data processing block when an idle condition is detected, and to recover the clock when a wake-up condition is detected. This provides a low complexity way of automatic clock gating in SoC designs, and generally a way to reduce power consumption of electronic devices. |
