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AR# 66859

2015.4 Zynq UltraScale+ MPSoC: I2C over EMIO requires an inverter for _t_n signals

Description

I am routing the I2C port to EMIO in a Zynq UltraScale+ MPSoC block diagram design.

When I make it external and run automation, Vivado places an IOBUF, but the interface does not work correctly because the expected polarity for the _t_n signal is backwards.

Solution

An inverter is needed for the _t_n signal.



This will be fixed in a future release to include the inverter automatically when running automation.

AR# 66859
Date Created 03/21/2016
Last Updated 05/18/2016
Status Active
Type General Article
Devices
  • Zynq UltraScale+ MPSoC
Tools
  • Vivado Design Suite - 2015.4