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Altera_Forum
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16 years ago

GPIO status during and before programming

What is the GPIO pin status before programming a EPM7064 cpld(max7000 series) and also during programming? (ie. Whether the pin status is High impedence or pulled low??) In my application on...
Altera_Forum's avatar
Altera_Forum
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16 years ago

see page 16 of the Datasheet:

http://www.altera.com/literature/ds/m7000.pdf

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During in-system programming, the I/O pins are tri-stated and pulled-up to eliminate board conflicts. The pull-up value is nominally 50 k¾.

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