This Graphic Editor example implements a parameterized tri-state bus. The width of the bus is specified with the LPM_WIDTH parameter and can be modified in your design. The dq and data_out pins are fed by tri-state buffers. Because tri-state buses cannot feed internal logic, the dq and data_out pins will be converted into multiplexers if they feed internal logic.
Download the Graphic Editor file used in this example:
The use of this design is governed by, and subject to, the terms and conditions of the Altera Hardware Reference Design License Agreement.
tribus.gdf

For more information on using this example in your project, go to:
- How to Use Graphic Editor Examples
- AHDL: Parameterized Tri-State Bus
- Implementing Tri-State Buses in Altera Devices
- MAX+PLUS II Help
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