No. The College's rules state that:
A student in the College of Engineering and Computing may add to his or her program of study any minor listed in the Academic Programs A-Z section of this bulletin, provided the minor field of study is distinctly different from the major.
The requirements for the CS minor are a subset of the required classes for the CE and CIS majors, thus the CS minor is not "distinctly different" from the CE or CIS major. They are very similar.
Of course, if you want to take more CSCE courses, you can. You might also want to look into our Accelerated BS/MS degree which will let you use those classes towards an MS in Computer Science degree.