Xilinx Virtex-6 Manual page 265

MUXF7_L
Primitive: 2-to-1 look-up table Multiplexer with Local Output
Introduction
This design element is a two input multiplexer for creating a function-of-7 look-up table or a 16-to-1 multiplexer
in combination with two LUT6 look-up tables. Local outputs (LO) of two LUT6 are connected to the I0 and I1
inputs of the MUXF7. The S input is driven from any internal net. When Low, S selects I0. When High, S selects I1.
The LO output connects to other inputs in the same CLB slice.
See also MUXF7 and MUXF7_D.
Logic Table
Inputs
S
0
1
X
X
Port Descriptions
Port Direction
LO Output
I0 Input
I1 Input
Input
S
Design Entry Method
Instantiation
Inference
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Macro support
Virtex-6 Libraries Guide for HDL Designs
UG623 (v 14.5) March 20, 2013
I0
I0
X
0
1
Width
1
1
1
1
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Chapter 4: About Design Elements
I1
X
I1
0
1
Function
Output of MUX to local routing
Input
Input
Input select to MUX
Yes
Recommended
No
No
Output
LO
I0
I1
0
1
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