RT Journal Article
A1 Yu Wang
A1 Hyunchul Shin

PB iet
T1 Effective regularity extraction and placement techniques for datapath-intensive circuits
JN IET Circuits, Devices & Systems
VO 11
IS 5
SP 512
OP 519
AB Regular structures, like datapath, are important components of integrated circuits. Datapath logic is usually placed with high regularity and compactness for higher performance by using manual placement. The authors propose effective datapath regularity extraction and placement (DREP) techniques which simultaneously place datapath logic and random logic. This method detects datapath logic and effectively formats regular datapath structures while optimizing the order of functional stages and placement of datapath blocks. Moreover, the datapath structures are further optimized by using bit-slice order adjustment and partitioning techniques during global placement. Partitioning of a big datapath macro greatly increases the placement flexibility, since partitioned sub-blocks of the datapath macro can be optimally placed with other blocks. A new effective method is also suggested to decide the block to be partitioned and the granularity of partitioning. Similar to the manual placement results, the datapath logic is regularly placed and the datapath cells are aligned well, vertically or horizontally by the DREP techniques. When compared with the state-of-the-art works, the experimental results show that the new techniques produce significantly better results than other methods in terms of half perimeter wire length, Steiner wire length, and routability, measured from the detail routing results.
K1 placement flexibility
K1 global placement
K1 datapath-intensive circuits
K1 datapath logic
K1 regular datapath structures
K1 bit-slice order adjustment
K1 datapath cells
K1 datapath block placement
K1 DREP technique
K1 integrated circuit components
K1 routability
K1 circuit design
K1 half perimeter wire length
K1 Steiner wire length
K1 random logic
K1 big datapath macro partitioning
K1 datapath regularity extraction and placement techniques
DO https://doi.org/10.1049/iet-cds.2016.0249
UL https://digital-library.theiet.org/;jsessionid=2juig6p72mmtl.x-iet-live-01content/journals/10.1049/iet-cds.2016.0249
LA English
SN 1751-858X
YR 2017
OL EN