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Altera_Forum's avatar
Altera_Forum
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17 years ago

Using bidir pins to chain PLLs in Cyclone II

Is it possible to chain two PLLs in Cyclone II devices using an I/O pad?

The idea would be to define one of the inputs of the slave PLL as bidirectional. Then route the output of the master PLL to that same pin.

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  • Altera_Forum's avatar
    Altera_Forum
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    17 years ago

    Oh, I see it is not possible. All the PLL inputs are dedicated pins :(