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Adventurer
Adventurer
103 Views
Registered: ‎03-28-2020

turn off the power or clock of some modules during operation

Is there a way to turn off the power or clock of some modules during operation? For example, only supply power to the DDR4 controller and enable the clock when needed, and turn it off in the sleep state of the FPGA to reduce power consumption?

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Teacher
Teacher
94 Views
Registered: ‎07-09-2009

no and yes,

Power is supplied to all the parts of the FPGA,

clock gating is well supported on the bigger devices,
less so on the smaller ones,

this will give you a few pointers and where to search

https://www.xilinx.com/support/documentation/application_notes/xapp790-7-series-clock-gating.pdf
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