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Altera_Forum
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14 years ago

What exactly does EPCS and EPCQ stand for on Altera devices

I understand that it is something serially programmed when the FPGA is being configured, but what exactly does the acronym stand for and why is it essential in configuring the FPGA?
Altera_Forum's avatar
Altera_Forum
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14 years ago

Back into EPC days, it stands for Enhanced Programmable Configuration device, JTAG interface with flash die. When they started to repackage SPI flash, they add 'S' into EPC so it became EPCS. Now with the Quad-SPI flash in the market, they also has EPCQ :)