Intel® Quartus® Prime Standard Edition User Guide: Platform Designer

ID 683364
Date 12/15/2018
Public
Document Table of Contents

4.3.2. Tri‑State Conduit Pin Sharer

The Tri‑state Conduit Pin Sharer multiplexes between the signals of the connected tri‑state controllers. You connect all signals from the tri‑state controllers to the Tri‑state Conduit Pin Sharer and use the parameter editor to specify the signals that are shared.
Figure 134. Tri‑State Conduit Pin Sharer Parameter EditorThe parameter editor includes a Shared Signal Name column. If the widths of shared signals differ, the signals are aligned on their 0th bit and the higher-order pins are driven to 0 whenever the smaller signal has control of the bus. Unshared signals always propagate through the pin sharer. The tri-state conduit pin sharer uses the round‑robin arbiter to select between tri-state conduit controllers.
Note: All tri-state conduit components connected to a pin sharer must be in the same clock domain.