Abstract:
Embodiments are provided for an asynchronous processor with a Hierarchical Token System. The asynchronous processor includes a set of primary processing units configured to gate and pass a set of tokens in a predefined order of a primary token system. The asynchronous processor further includes a set of secondary units configured to gate and pass a second set of tokens in a second predefined order of a secondary token system. The set of tokens of the primary token system includes a token consumed in the set of primary processing units and designated for triggering the secondary token system in the set of secondary units.
Abstract:
A clock-less asynchronous processing circuit or system utilizes a self-clocked generator to adjust the processing delay (latency) needed/allowed to the processing cycle in the circuit/system. The timing of the self-clocked generator is dynamically adjustable depending on various parameters. These parameters may include processing instruction, opcode information, type of processing to be performed by the circuit/system, or overall desired processing performance. The latency may also be adjusted to change processing performance, including power consumption, speed etc.
Abstract:
A clock-less asynchronous processing circuit or system is configured to operation in a plurality of modes. In an initialization mode (e.g., reset, initialization, boot up), a self-clocked generator associated with the asynchronous circuit is configured to generate an active complete signal (to latch output processed data) within a first period of time after receiving a trigger signal. In a normal mode, the self-clocked generator is configured to generate the active complete signal within a second period of time after receiving the trigger signal. In one embodiment, during the initialization mode, the asynchronous circuit latches the output slower than when in the normal mode.
Abstract:
Embodiments are provided for an asynchronous processor with token-based very long instruction word architecture. The asynchronous processor comprises a memory configured to cache a plurality of instructions, a feedback engine configured to receive the instructions in bundles of instructions at a time (referred to as very long instruction word) and to decode the instructions, and a crossbar bus configured to transfer calculation information and results of the asynchronous processor. The apparatus further comprises a plurality of sets of execution units (XUs) between the feedback engine and the crossbar bus. Each set of the sets of XUs comprises a plurality of XUs arranged in series and configured to process a bundle of instructions received at the each set from the feedback engine.