80960CX/80960JX/80960HX Architectural Comparison

This document describes three implementations of the i960® architecture: the 80960Cx, 80960Jx, and 80960Hx microprocessors. During the 80960Jx and 80960Hx definition process, every attempt was made to maintain backward compatibility with the 80960Cx processor. To a large extent, this compatibility is maintained; most application code will run on each processor without modification. Due to enhancements to the bus interface, instruction set, and other refinements, complete compatibility was not maintained. This document discusses in detail those differences between the 80960Cx, 80960Jx, and 80960Hx microprocessors. Suggestions are given for mitigating their impact on future designs. This document also provides hints for developing applications which the 80960Cx processor can use now, and can be 80960Hx-ready in the future. The reader should note that the 80960Hx processor is not drop-in compatible with the 80960Cx processor. However, system hardware can be designed such that it will accept both the 80960Cx and 80960Hx processors in the same socket.
Specification Update for this document: 272852.htm

File Name/Size:: 27269401.pdf
544292 bytes
Download From:: Developers' Insight CD-ROM