The current trends of mobile battery-powered devices make area and
power critical design constraints in many applications. It is
important that embedded software implementations execute any given
task as power efficiently as possible. These tasks often require the
computation of transcendental functions (sine, cosine, exponential,
logarithm, etc.). The CORDIC algorithm can be used to implement an
area-efficient hardware accelerator to assist in the computation of
many of these functions while reducing the total energy consumed. This
report presents the design and implementation of a fixed-point CORDIC
rotator. The CORDIC rotator is used to assist in the computation of
IEEE-754 single-precision floating-point exponentials. Power
simulation results show the CORDIC-assisted exponent computation
consumes 81.42% less energy as compared with the unassisted
software solution while adding less than 10% to the gate count of
the original system. / text
| Identifer | oai:union.ndltd.org:UTEXAS/oai:repositories.lib.utexas.edu:2152/24052 |
| Date | 21 April 2014 |
| Creators | Torres, Omar A. |
| Source Sets | University of Texas |
| Detected Language | English |
| Type | Thesis |
| Format | application/pdf |
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