Runtime Controllable Clock Domains Achieved Clock Frequency (MHz) - 2022.2 English

Vitis Guidance Messaging (UG1315)

Document ID
UG1315
Release Date
2022-10-19
Version
2022.2 English

Description

This lists the precise frequencies (MHz) for the run time controllable kernel clock(s) and scalable system clock(s).

Explanation

Kernel clocks, and system clocks for some platforms, are scalable. They can preserve functionality at the cost of performance by running at a lower frequency than requested. To be scalable, a clock must be driven by an MMCM where the control registers for the MMCM can be set by the runtime over AXI4-Lite. This item shows the final runtime controlled frequencies for all scalable clocks.