Performance monitoring through JTAG 1149.1 interface

Details Performance monitoring through JTAG 1149.1 interface Performance monitoring through JTAG 1149.1 interface

1996-08-28

1998-06-16

Trammell, James P.

Boots, shoes, and leggings

39518303, G01B 1700

Patent

active

057681520

ABSTRACT:
Disclosed is a system and method of providing performance analysis on integrated circuit devices and systems using an IEEE JTAG 1149.1 interface. An integrated circuit device is described that includes an execution control register for receiving a control code from an external device via the JTAG interface, a means for selecting and coupling to one or more specific logic circuits on the device, one or more counters for recording specific events occurring on the logic circuits, and a counter register for managing the counter data and outputting it via the JTAG interface.

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