User and Reference Guide

  • 2020
  • 07/29/2020
  • Public Content

JTAG-enabled CPU

Some Intel processors are not factory-enabled for JTAG debugging, while others may limit JTAG-accessible functions depending on fusing, firmware configuration, board strappings, or other factors. Note that "enabled" refers to the processor core, which is required for software debugging. Even if the processor is disabled, it is still possible for the fundamental JTAG connection to work, and access to other SoC resources to be possible.

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804