Presentation 1995/10/19
A 286MHz 64-bit Floating Point Multiplier with Enhanced CG Operation
Hiroshi MAKINO, Hiroaki SUZUKI, Hiroyuki MORINAKA, Yasunobu NAKASE, Koichiro MASHIKO, Tadashi SUMI,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper presents a high speed 64-bit floating-point (FP) multiplier with a useful function for computer graphics (CG). The critical path delay was minimized by selecting high speed gates and limiting the stage number of series transmission gates (TGs). We implemented the special function of "CG multiplication" that directly multiplies a pixel data by a FP data. The process technology is 0.5-μm CMOS with triple metal. The active area size is 4.2×5.1mm^2. The operating frequency is 286MHz at the supply voltage of 3.3V. Implementation of CG multiplication increases the transistor count only 4%. Also, it has no effect on the delay in the critical path.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) floating point multiplier / critical path / computer graphics / transmission gate / high speed / CM0S
Paper # DSP95-99,ICD95-148
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Conference Information
Committee DSP
Conference Date 1995/10/19(1days)
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Paper Information
Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A 286MHz 64-bit Floating Point Multiplier with Enhanced CG Operation
Sub Title (in English)
Keyword(1) floating point multiplier
Keyword(2) critical path
Keyword(3) computer graphics
Keyword(4) transmission gate
Keyword(5) high speed
Keyword(6) CM0S
1st Author's Name Hiroshi MAKINO
1st Author's Affiliation System LSI Laboratory, Mitsubishi Electric Corporation()
2nd Author's Name Hiroaki SUZUKI
2nd Author's Affiliation System LSI Laboratory, Mitsubishi Electric Corporation
3rd Author's Name Hiroyuki MORINAKA
3rd Author's Affiliation System LSI Laboratory, Mitsubishi Electric Corporation
4th Author's Name Yasunobu NAKASE
4th Author's Affiliation System LSI Laboratory, Mitsubishi Electric Corporation
5th Author's Name Koichiro MASHIKO
5th Author's Affiliation System LSI Laboratory, Mitsubishi Electric Corporation
6th Author's Name Tadashi SUMI
6th Author's Affiliation System LSI Laboratory, Mitsubishi Electric Corporation
Date 1995/10/19
Paper # DSP95-99,ICD95-148
Volume (vol) vol.95
Number (no) 298
Page pp.pp.-
#Pages 8
Date of Issue