Asynchronous Conversion Circuitry for Synchronous Core Integration

The patent employs conversion circuitry as an intermediary layer between synchronous core circuitry and asynchronous application environments. The asynchronous-to-synchronous conversion circuitry receives asynchronous input signals, converts them to synchronous signals suitable for the core circuitry, and the synchronous-to-asynchronous conversion circuitry converts output signals back to asynchronous format. This mediator approach allows existing synchronous core circuitry to be used in asynchronous applications without direct modification, resolving the contradiction between ease of manufacture and adaptability.

The patent segments the circuit design into distinct functional blocks: asynchronous input interface, asynchronous-to-synchronous conversion circuitry, synchronous core circuitry, synchronous-to-asynchronous conversion circuitry, and asynchronous output interface. This segmentation allows the complex asynchronous handling to be isolated to specific conversion modules while the core circuitry remains simple and well-understood synchronous logic. The modular structure manages device complexity by localizing the complexity burden to dedicated conversion blocks.

The conversion circuitry employs feedback mechanisms to preserve temporal relationships between ports. The asynchronous-to-synchronous conversion monitors the asynchronous input signals and uses feedback control to generate appropriate synchronous clock signals that maintain the temporal relationships required by the synchronous core circuitry. Similarly, the synchronous-to-asynchronous conversion uses feedback to ensure output signals maintain proper temporal relationships with the asynchronous interface, thus preserving reliability while enabling productivity gains from using standard synchronous core circuitry.