US 7,613,966 B2
Hyperjtag system including debug probe, on-chip instrumentation, and protocol
Ernest Lewis Edgar, Larkspur, Colo. (US); and Bruce J. Ableidinger, Portland, Oreg. (US)
Assigned to MIPS Technologies, Inc., Mountain View, Calif. (US)
Filed on Jan. 05, 2009, as Appl. No. 12/348,847.
Application 12/348847 is a continuation of application No. 11/026324, filed on Dec. 29, 2004, granted, now 7,475,303, filed on Jan. 06, 2009.
Claims priority of provisional application 60/533331, filed on Dec. 29, 2003.
Prior Publication US 2009/0119555 A1, May 07, 2009
Int. Cl. G01R 31/28 (2006.01)
U.S. Cl. 714—724 5 Claims
OG exemplary drawing
 
1. A port-sharing device, comprising:
multiple processor cores on a chip, at least a sub-set of processor cores being coupled to corresponding off-chip test probes, wherein communication of signals between a specific processor core of the sub-set of processor cores and a corresponding off-chip test probe is interleaved in time layers with signals from each of the remaining processor cores in the sub-set of processor cores, wherein processor cores of the sub-set of processor cores are independently and simultaneously controlled.