Tracing support for interconnect fabric

摘要: Complex on-chip interconnect fabrics, particularly those that include point-to-point interconnects and coherent routing networks, can present significant challenges for conventional trace techniques may be applied in an effort to efficiently provide external debugger with visibility into transactions. Embodiments described herein generate supply separate in-circuit-trace messages including address data messages, which are sent out (i.e., off-chip) debug tools generally without delay coincident the distinct, but related, events within paths of fabric. These message instances embed appropriate tag mark values allow post-processed correlated by so as reconstruct transaction information operations performed interconnect.