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Full-Custom vs. Standard-Cell Design Flow - An Adder Case Study

Tomas Henriksson ; Henrik Eriksson (Institutionen för datorteknik, Integrerade elektroniksystem) ; Per Larsson-Edefors (Institutionen för datorteknik, Integrerade elektroniksystem) ; Christer Svensson
Proceedings of Asia South-Pacific Design Automation Conference (ASPDAC), Kitakyushu, 21-24 January 2003 p. 507-510. (2003)
[Konferensbidrag, refereegranskat]

Full-custom design is considered superior to standard-cell design when a high-performance circuit is requested. The structured routing of critical wires is considered to be the most important contributor to this performance gap. However, this is only true for bitsliced designs, such as ripple-carry adders, but not for designs with inter-bitslice interconnections spanning several bitslices, such as tree adders and reduction-tree multipliers. It is found that standard-cell design techniques scale better with the data width than full-custom bitsliced layouts for designs dominated by inter-bitslice interconnections.



Denna post skapades 2006-09-12. Senast ändrad 2016-09-14.
CPL Pubid: 17597

 

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Institutioner (Chalmers)

Institutionen för datorteknik, Integrerade elektroniksystem (2002-2004)

Ämnesområden

Elektronik

Chalmers infrastruktur