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XNOR2-9

2- to 9-Input XNOR Gates with Non-Inverted Inputs

Element
XC3000
XC4000E
XC4000X
XC5200
XC9000
Spartan
SpartanXL
Virtex
XNOR2,
XNOR3,
XNOR4
Primitive
Primitive
Primitive
Primitive
Primitive
Primitive
Primitive
Primitive
XNOR5
Primitive
Primitive
Primitive
Macro
Macro
Primitive
Primitive
Primitive
XNOR6,
XNOR7,
XNOR8,
XNOR9
Macro
Macro
Macro
Macro
Macro
Macro
Macro
Macro

Figure 10.12 XNOR Gate Representations

The XNOR function is performed in the Configurable Logic Block (CLB) function generators in XC3000, XC4000, and Spartans. XNOR functions of up to nine inputs are available. All inputs are non-inverting. Because each input uses a CLB resource, replace functions with unused inputs with functions having the necessary number of inputs.

Figure 10.13 XNOR5 Implementation XC5200

Figure 10.14 XNOR5 Implementation XC9000

Figure 10.15 XNOR6 Implementation XC9000

Figure 10.16 XNOR7 Implementation XC3000

Figure 10.17 XNOR7 Implementation XC4000, XC5200, Spartans

Figure 10.18 XNOR7 Implementation XC9000

Figure 10.19 XNOR7 Implementation Virtex

Figure 10.20 XNOR8 Implementation XC3000

Figure 10.21 XNOR8 Implementation XC4000, XC5200, Spartans

Figure 10.22 XNOR8 Implementation XC9000

Figure 10.23 XNOR8 Implementation Virtex

Figure 10.24 XNOR9 Implementation XC3000

Figure 10.25 XNOR9 Implementation XC4000, XC5200, Spartans

Figure 10.26 XNOR9 Implementation XC9000

Figure 10.27 XNOR9 Implementation Virtex

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