Microprocessor with trace module

Details Microprocessor with trace module Microprocessor with trace module

2006-05-30

2006-05-30

Tu, Christine T. (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C710S120000

Reexamination Certificate

active

07055078

ABSTRACT:
A processor-based device includes a processor, a trace module, a plurality of data input/output pins, and an input/output interface circuit. The input/output interface circuit, when operating in a trace mode, externally outputs trace data signals from the trace module to an external device via at least one of the data input/output pins. When in a normal mode, the input/output interface circuit transfers data from the processor core to the data input/output pins and transfers data received at the data input/output pins to the processor core. In this manner, the processor-based device according to the present invention can output trace data using normal data input/output pins without the need for additional pins for outputting the trace data.

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