Xilinx Virtex-6 Manual page 172

Chapter 4: About Design Elements
IOBUF
Primitive: Bi-Directional Buffer
Introduction
The design element is a bidirectional single-ended I/O Buffer used to connect internal logic to an external
bidirectional pin.
Logic Table
Inputs
T
1
0
0
Port Descriptions
Port Direction
O Output
Inout
IO
I Input
T Input
Design Entry Method
Instantiation
Inference
CORE Generator™ and wizards
Macro support
172
I
X
1
0
Width
1
1
1
1
www.xilinx.com
Bidirectional
IO
Z
1
0
Function
Buffer output
Buffer inout
Buffer input
3-State enable input
Yes
Recommended
No
No
Virtex-6 Libraries Guide for HDL Designs
Outputs
O
IO
1
0
UG623 (v 14.5) March 20, 2013