Article Details

ID: 5042
Case Type: faq
Category: Architecture
Related To: IO
Family: iCE40

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Can the iCE40 SPI configuration port be used as GPIO?

Yes, the dedicated SPI configuration pins can also be used as GPIO. The iCECube2 tool allows you to assign these pins to the design ports.

Note: The dedicated SPI lines become GPIO only after 49 additional configuration cycles once the "Done" pin goes high.
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