Multiprocessing I/O enables efficient 3G base-station designs

摘要

If you rely on conventional I/O Structures based on buses, switches, or linear tunnels, efficiently performing data communications between data-processing blocks of large systems can be difficult. When many subsystems are simultaneously sending and receiving data, it can be difficult to ensure on-time data delivery for any transfer, given the inherent uncertainty of how the other transfers may affect it. By spreading out the data traffic over an entire area of the design, 2-D I/O fabrics achieve deterministic data transfers and low latency, enabling multiple processing blocks to more efficiently work in parallel, as they can in the chip- and symbol-rate portions of 3G (third-generation) base stations.