发明授权
US07694111B2 Processor employing loadable configuration parameters to reduce or eliminate setup and pipeline delays in a pipeline system 有权
处理器采用可加载配置参数来减少或消除管道系统中的设置和流水线延迟

Processor employing loadable configuration parameters to reduce or eliminate setup and pipeline delays in a pipeline system
摘要:
A deep-pipeline system substantially reduces the overhead of setup delays and pipeline delays by dynamically controlling access of a plurality of configuration register sets by both a host central processing unit (CPU) and the stages of the pipelines. A master configuration register set is loaded with configuration parameters by the host CPU in response to an index count provided by a setup-index counter. A plurality of other counters are employed to track timing events in the system. In one embodiment, a run-index counter provides a run-index count to the first stage of the pipeline that is propagated along the stages, enabling configuration register sets to transfer configuration parameters to the stages of the pipeline when required to enable processing of a task. In an alternative embodiment, a plurality of D flip-flops sequentially propagates a state for successive registers, so that the setup-index counter is not required.
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