摘要： 传统加法器在处理多操作数累加时，必须进行多次循环相加操作。针对该问题设计5操作数并行加法器及其高速进位接口。电路采用多操作数并行本位相加和底层进位级联传递的方式，在一定程度上实现多操作数间的并行操作，减少相加次数。模拟结果验证了该加法器的设计合理性，证明其能缩短累加时间、提高运算效率。

关键词: 加法器, 超前进位加法器, 进位接口

Abstract: Traditional adder must do several times of cyclic addition operation in processing of multi-operand accumlation. Aiming at this problem, this paper designs a five addend parallel adder and its high speed carry interface. Because the circuit uses parallel own department addition of multi-operands and bottom layer carry cascade connection transmission mode, the parallel operation between multi-operands is realized and addition times are reduced. Simulation results verify the design reasonability of the adder and prove that it can shorten addition time, enhance operation efficiency.

Key words: adder, Carry Look-Ahead Adder(CLAA), carry interface

中图分类号: 

• TP342.21