Sun releases new UltraSparc design details

Sun Microsystems released new details on Wednesday about its UltraSparc T1 "Niagara" processor. The details are in a document called the OpenSparc T1 Microarchitecture Specification, Sun's Dwayne Lee said on his blog.

According to the Sun download site, the specifications include detailed descriptions of processor components' functions, those functions' designs, and the signals the components use to communicate.

Sun released the T1 design as open source governed by the General Public License (GPL). The move is part of the company's effort to turn around its image as a proprietary technology company.

Sun has been trying to outdo rivals with its aggressive open-source moves. IBM on Tuesday said at the LinuxWorld Conference and Expo that making an open-source design out of a chip such as its own Power processor can create compatibility problems.

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