Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 4/01/2024
Public

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5.5.1.2.1. HSSI Bonded Clock Source

The HSSI Bonded Clock interface includes a source in the Start direction.

You can instantiate the HSSI Bonded Clock Source interface in the _hw.tcl file as:

add_interface <name> hssi_bonded_clock start

You can connect the HSSI Bonded Clock Source to multiple HSSI Bonded Clock Sinks because the HSSI Serial Clock Source supports multiple fanouts. This Interface has a single clk port role limited to a width range of 1 to 1024 bits. The HSSI Bonded Clock Source interface has two parameters: clockRate and serializationFactor. clockRate is the frequency of the clock driven by the HSSI Bonded Clock Source interface, and the serializationFactor is the parallel data width that operates the HSSI TX serializer. The serialization factor determines the required frequency and phases of the individual clocks within the HSSI Bonded Clock interface

An unconnected and unexported HSSI Bonded Source is valid, and does not generate error messages.

Table 84.  HSSI Bonded Clock Source Port Roles
Name Direction Width Description
clk Output 1 to 24 bits A multiple bit wide port role which provides synchronization for internal logic.
Table 85.  HSSI Bonded Clock Source Parameters
Name Type Default Derived Description
clockRate long 0 No The frequency of the clock driven byte HSSI Serial Clock Source interface.
serialization long 0 No The serialization factor is the parallel data width that operates the HSSI TX serializer. The serialization factor determines the necessary frequency and phases of the individual clocks within the HSSI Bonded Clock interface.