Diagnostic mode switching

Details Diagnostic mode switching Diagnostic mode switching

2006-11-20

2010-06-22

Trimmings, John P (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S025000, C714S030000, C714S034000, C714S045000, C714S726000, C714S727000, C714S729000, C714S718000, C714S733000, C714S734000, C710S061000, C365S201000, C703S028000

Reexamination Certificate

active

07743294

ABSTRACT:
A system is described having a JTAG diagnostic unit and a serial wire diagnostic unit. A watcher unit is connected to a data connection shared between the diagnostic units. Special patterns detected upon the shared data connection serve to switch between diagnostic modes with respective ones of the diagnostic units becoming active.

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