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Altera_Forum
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14 years ago

Programmable pull-up resistor in Cyclone II

Dear Sir, I've a question about the pull-up resistor. Suppose, the pull-up resistor is related to the I/O voltage Vccio and current strength, isn't it? Why does it show the resistor is a...
Altera_Forum's avatar
Altera_Forum
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14 years ago

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Suppose, the pull-up resistor is related to the I/O voltage Vccio and current strength.

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It isn't. The value is fixed, but subject to PVT (process, voltage, temperature) variations.