The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 10, 1998

Filed:

Aug. 15, 1994
Applicant:
Inventors:

Oded Yishay, Austin, TX (US);

Joseph Jelemensky, Austin, TX (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
39518301 ; 39518311 ; 395800 ; 395413 ; 3642674 ;
Abstract

Existing chip select comparator logic (42) is used to compare a portion of the address value with a range of chip select addresses to provide a match signal for use by both the chip select logic (70) and a breakpoint logic circuit (50.x). The match signal is generated by the chip select logic circuit and is reused by the breakpoint logic circuit to perform a different and distinct function. By using the match signal and a breakpoint enable bit, the breakpoint logic circuit selectively asserts a breakpoint signal. Subsequently, a central processing unit (12) receives the breakpoint signal and initiates a breakpoint exception operation to determine whether the breakpoint condition is met and whether further action should be taken.


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