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Design of Look-up Table in Huffman CODEC Using DBLCAM and Two-port SRAM  

이완범 (원광대학교 전자공학과)
하창우 (한국 고덴시㈜)
김환용 (원광대학교 전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.39, no.10, 2002 , pp. 57-64 More about this Journal
Abstract
The structure of conventional CAM(Content Addressable Memory) cell, used to Look-up table scheme in Huffman CODEC, is not performed by being separated in reading, writing and match operation. So, there is disadvantages that the control is complicated, and the floating states of match line force wrong operation to be happened in reading, writing operation. In this paper, in order to improve the disadvantages and proces the data fast, fast Look-up table is designed using DBLCAM(Dual Bit Line CAM)-performing the reading, writing operation and match operation independently and Two-port SRAM being more fast than RAM in an access speed. Look-up table scheme in Huffman CODEC, using DBLCAM and Two-port SRAM proposed in this paper, is designed in Cadence tool, and layout is performed in 0.6${\mu}{\textrm}{m}$ 2-poly 3-metal CMOS full custom. And simulation is peformed with Hspice.
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