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Combined hardware selection and pipelining in high-performance data-path design

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4 Author(s)
S. Note ; Interuniv. Micro-Electron. Center, Leuven, Belgium ; F. Catthoor ; G. Goossens ; H. De Man

At the highest abstraction level, the specification of a data path consists of a number of interconnected abstract building blocks and a constraint on the minimal clock frequency. An algorithm which optimally selects hardware blocks for implementing these abstract building blocks is presented. A technique for hierarchical redistribution and insertion of pipeline registers is also presented. Finally, the two optimization tasks are combined. This combination makes the area tradeoff between the cost of additional speedup circuitry and pipeline registers possible. The techniques are based on accurate hierarchical timing models for the hardware blocks. The automation relieves the designer of the numerous, time-consuming critical path verifications and area evaluations that are required to explore the large design space. The implementation of the algorithms has resulted in a CAD tool called HANDEL, embedded in the data-path compiler CHOPIN

Published in:

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  (Volume:11 ,  Issue: 4 )