Hierarchical IP in IP Integrator - 2021.2 English

Vivado Design Suite User Guide: Designing IP Subsystems Using IP Integrator

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2021.2 English

Some IP in the IP catalog are hierarchical, and offer a child BD inside the top-level BD to display the logical configuration of the IP. These hierarchical IP (also called subsystem IP) let you see the contents of the block, but do not let you directly edit the hierarchy.

Changes to the child BD can only be made by changing the configuration of the IP in the Re-customize IP dialog box.

For example, the 10G Ethernet Subsystem and AXI 1G/2.5G Ethernet Subsystem is an Hierarchical IP in the Vivado IP catalog. You would instantiate these IP just as any other IP by searching and selecting the IP. The following figure shows the 10G Ethernet Subsystem and AXI 1G/2.5G Ethernet Subsystem information.

Figure 1. Adding Hierarchical IP to the Block Design

When the IP has been instantiated into a BD, double-click the IP to open the Re-customize IP dialog box where you can configure the IP parameters.

You can run Block Automation for Hierarchical IP when available. This feature creates a subsystem consisting of IP blocks needed to configure the IP.

Figure 2. Running Block Automation for Hierarchical IP

Using the Run Block Automation dialog box, you can select various parameters of the IP subsystem to create. This puts together an IP subsystem for the mode selected, like the one shown in the following figure.

Figure 3. Run Block Automation Dialog Box

You can also run Connection Automation when it is available to complete connections to I/O ports needed for Hierarchical IP subsystems.

Figure 4. Running Connection Automation for Hierarchical IP

The Run Connection Automation dialog box lets you select different connectivity options for the subsystem. See the following figure.

Figure 5. Run Connection Automation Dialog Box

The complete hierarchical IP subsystem should look as shown in the following figure.

Figure 6. Hierarchical IP Subsystem After Running Designer Assistance

To view the child BD inside the AXI Ethernet subsystem IP, right-click and select View Block Design command, as shown in the following figure.

Tip: You cannot directly edit the subsystem block design of a Hierarchical IP.
Figure 7. View Block Design

Tip: If you re-customize the IP while the child-level block design is open, the child-level block design will close.

To view the BD, click View Block Design icon at the top left corner of the IP symbol.

This opens a Diagram window showing the child-level BD, as shown in the following figure.

Figure 8. Child Block Design in Hierarchical IP