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Altera_Forum
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15 years ago

Cyclone III pin configuration

Hi everyone, I'm working on a project that will be using a cyclone III. Since I'm a beginner with making FPGA PCBs, I have a few questions. First, I want to be able to debug the FPGA thro...
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Altera_Forum
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15 years ago

EPCS can be perfectly programmed through indirect JTAG, if you don't mind to convert the programming files. So the AS connector can be saved. MSEL would be pinstrapped to AS normally.

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Aside from these pins, the VCCIO, VCCINT, and GND pins, are there any other pins that have to be correctly configured for the FPGA to be programmed and run properly? The PLL pins are not necessary, correct?

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The configuration related signals, particularly NCONFIG and NSTATUS must be wired with pull-up resistors according to the hardware handbook. PLL supply pins must be connected to VCCA, even if the respective PLL is unused. Not exactly a pin, but it's important to connect the exposed pad of E144 package to GND.