Using Gated Clocks - 2023.2 English

Versal Adaptive SoC Hardware, IP, and Platform Development Methodology Guide (UG1387)

Document ID
UG1387
Release Date
2023-11-15
Version
2023.2 English

AMD devices include dedicated clock networks that can provide a large-fanout, low-skew clocking resource. Fine-grained clock gating techniques included in the HDL code can disrupt the functionality and prevent efficient use of the dedicated clocking resources. Therefore, when writing HDL to target a device, AMD does not recommend that you code clock gating constructs into the clock path. Instead, control clocking by using coding techniques to infer clock enables to stop portions of the design, either for functionality or power reasons.