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To get the best performance of fully dynamic partial reconfigurable systems, the partitions must be so fine grained so as to reduce the configuration over head and to increase the system density. It is difficult to partition the system to such small circuits. Instead semi-static circuits can be used to achieve good performance while maximizing system utilization [8]. By the term semi-static I mean that the circuit is almost used as is but only small changes can be applied to it. The following shows some examples of semi-static circuits:
- Constant values: circuits that are optimized to operate for certain values, new constant values can be applied to these circuits without interrupting the whole design.
- Precision: Arithmetic circuits generally have the same structure but they differ with the number of duplicate circuits that yields to different precision.
- Almost any circuits that share the same functionality but have small differences can use this technique.
Jamil Khatib
1998-10-16