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Libraries Guide
Chapter 10: Design Elements (SOP3 to XORCY_L)

SOP3-4

Sum of Products

Element
XC3000
XC4000E
XC4000X
XC5200
XC9000
Spartan
SpartanXL
Spartan2
Virtex
SOP3,
SOP3B1A,
SOP3B1B,
SOP3B2A,
SOP3B2B,
SOP3B3
SOP4,
SOP4B1,
SOP4B2A,
SOP4B2B,
SOP4B3,
SOP4B4
Macro
Macro
Macro
Macro
Macro
Macro
Macro
Macro
Macro

Figure 10.1 SOP Gate Representations

Sum Of Products (SOP) macros and primitives provide common logic functions by OR gating the outputs of two AND functions or the output of one AND function with one direct input. Variations of inverting and non-inverting inputs are available.

Figure 10.2 SOP3 Implementation XC3000, XC4000E, XC4000X, XC5200, XC9000, Spartan, SpartanXL, Spartan2, Virtex

Figure 10.3 SOP4 Implementation XC3000, XC4000E, XC4000X, XC5200, XC9000, Spartan, SpartanXL, Spartan2, Virtex