The Selection Guide chapter briefly describes, then tabularly lists the logic elements that are explained in detail in the Design Elements sections. The tables included in this section are organized into functional categories. They list the available elements in each category along with a brief description of each element and an applicability table identifying which libraries (XC3000, XC4000E, XC4000X, XC5200, XC9000, Spartan, SpartanXL, Spartan2, Virtex) contain the element.