Reversing the Bus Bit Order - 2023.2 English

Vivado Design Suite User Guide: Logic Simulation (UG900)

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2023.2 English

You can reverse the bus bit order in the wave configuration to switch between MSB-first (big endian) and LSB-first (little endian) bit order for the display of bus values.

To reverse the bit order:

  1. Select a bus.
  2. Right-click and select Reverse Bit Order.

    The bus bit order reverses. The Reverse Bit Order command is marked to show that this is the current behavior.

    Important: The Reverse Bit Order command operates only on the values displayed on the bus. The command does not reverse the list of bus elements that appear below the bus when you expand the bus wave object.
    Tip: The index ranges displayed on the Long and Short names of buses indicate the bit order in bus elements. For example, after applying Reverse Bit Order on a bus bus[0:7], the bus displays bus[7:0].