Automated Low-Power ASIC Design for Speech Processing

Authors:
Yeo, Engling
Technical Report Identifier: ERL-95-99
March 19, 1999

Abstract: Recent developments in Hyper's design space exploration and high-level synthesis techniques have brought the realization of automated synthesis of memory-intensive, low-power implementations closer. This work describes the design path taken to synthesize the front end of a speech recognition chip. It starts from the Hyper high-level synthesis tool by looking at possible alternatives at the algorithmic level, as well as using suitable transformations on the control flow data graph (CDFG) representation within Hyper. The flowgraph is then mapped onto an architecture, and more power analysis provides feedback for possible power improvements. Finally, with the help of the LagerIV architectural-level tools, a silicon layout suitable for fabrication is generated.