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Three-Stating a DPI Pin

Question asked by gopakumar on Dec 7, 2011
Latest reply on Dec 8, 2011 by jeyanthi.jegadeesan



On the datasheet of 21469 processor, I see that the DPI pins can be in the three-state condition (page 14). But the DPI pins have a default routing configuration after the processor is reset.

Now, DPI pins 1-4 are by default routed to SPI peripheral. So I see that if the processor is configured to boot in SPI Master mode, these pins would not be in three-state after reset.


I would like to know if it is possible to bring these pins (DPI pins 1-4) to three-state condition and if yes how it can be acheived.