| 摘要 |
A communication method and a bus design for interconnecting a plurality of components in a ring configuration with segments of the bus chaining from one component to another so as to reduce the amount of global wiring between components. One of the components serves as a beginning and end of the ring and controls the operation of the bus by injecting command, address, and write data, at the beginning of the ring and gathering read data at the end of the ring. By chaining components, no bus signal needs to travel further than a single component-to-component hop in any bus cycle. The bus includes unidirectional signal lines that carry data objects and tags in one direction, and carry flow control in the opposite direction. Tags accompany each data object and determine how a component interprets the data object when received.
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