基于多值逻辑的高性能片上总线设计

Design of High Performance On-Chip Bus Based on Multiple-Valued Logic

  • 摘要: 针对深亚微米条件下线延迟超越器件的延迟影响芯片性能的问题,提出一种新的片上总线模型和架构. 采用多值逻辑传输模式实现片上模块间的通信;采用地址预置技术,提高基于四值逻辑的片上模块间的数据传输效率. ADMS仿真结果表明,相对于二值地址预置总线,在保持相同数据吞吐量时,可以使总线的数量明显减少;在保持相同总线数目时,数据吞吐量提高2倍.

     

    Abstract: As the delay of interconnects might exceed the delay of the devices in very deep submicron realm, a novel on-chip bus structure model is proposed and designed. Multiple-valued logic (MVL) technique was used for communication between modules. Address-presetting was employed to improve the transmission efficiency. The designed structure was evaluated by ADMS simulation in a 0.18 μm CMOS technology. The results show that, corresponding to address-presetting binary bus, the number of bus is reduced significantly. In other words, with the same number of bus, the data throughput of designed bus using four-valued-logic technique could be increased by two times.

     

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