Method and apparatus for sharing debug resources

摘要

A method includes providing an integrated circuit having a plurality of debug resources. The debug resources are usable exclusively for debug operations. The debug operations include operations directed by debug software executed by the integrated circuit and operations directed by external debug hardware which is external to the integrated circuit. The method further includes enabling availability of a first portion of the debug resources for use by the debug software, where a second portion of the debug resources are committed for exclusive use by the external debug hardware. The first portion is exclusive of the second portion. The method includes performing operations directed by the debug software using at least one debug resource of the first portion of the debug resources and operations directed by the external debug hardware using at least one debug resource of the second portion of the debug resources.