UNIFIED MIXED-RADIX-2-4 REDUNDANT CORDIC PROCESSOR

Citation
E. Antelo et al., UNIFIED MIXED-RADIX-2-4 REDUNDANT CORDIC PROCESSOR, I.E.E.E. transactions on computers, 45(9), 1996, pp. 1068-1073
Citations number
17
Categorie Soggetti
Computer Sciences","Engineering, Eletrical & Electronic","Computer Science Hardware & Architecture
ISSN journal
00189340
Volume
45
Issue
9
Year of publication
1996
Pages
1068 - 1073
Database
ISI
SICI code
0018-9340(1996)45:9<1068:UMRCP>2.0.ZU;2-B
Abstract
We present a unified mixed radix CORDIC algorithm with carry-save arit hmetic with a constant scale factor. The pipelined architecture of the processor is determined by a unique sequence of microrotations for th e two modes of operation (rotation and vectoring) in circular and hype rbolic coordinates. The combination of radix-2 and radix-4, microrotat ions allows us to reduce the latency and size of the pipeline signific antly. The unified algorithm is based on the correcting microrotation method, which we have extended to the vectoring mode in hyperbolic coo rdinates. We have also generalized the use of radix-4, microrotations to the two operation modes and coordinate systems.