Device Clock Generation
This article provides a technical overview of generating clock signals for high-speed peripheral interfaces in FPGA and ASIC designs. It details the challenges of managing clock outputs for protocols like SPI, HyperRAM, and flash memory.
Why it matters
Understanding clock generation is critical for engineers designing reliable hardware interfaces for modern high-speed computing peripherals.
After building a CPU , utilities for handling bus interconnects , several DMAs and memory controllers, I often find my time focused on building interfaces between designs and external peripherals. This seems to be where most of the business has landed for me. Often, these peripherals require a clock output, coming from the design, and so I’d like to spend some time describing how to generate such a “device” clock.
The content is purely technical and instructional with no political or social agenda.
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