https://community.nxp.com/t5/Other-NXP-Products/Using-PCA9548A-with-upstream-slave-after-configuration/m-p/1334303#M11984 <P>We are trying to use the PCA9548A with a downstream master device.&nbsp; Is it possible to use the upstream master to configure the Control Block to connect to the downstream master, then after this configuration, reconfigure the upstream device to be a slave such that the downstream master can write data to the upstream slave?&nbsp; Based on the PCA9548A block diagram and app note, the PCA9548A operates like a wire after configuration with clock/data able to go in either direction.&nbsp; Do you see any issues with this plan?&nbsp;</P><P>Thanks, Ted</P> Thu, 02 Sep 2021 18:53:20 GMT twolfe 2021-09-02T18:53:20Z https://community.nxp.com/t5/Other-NXP-Products/Using-PCA9548A-with-upstream-slave-after-configuration/m-p/1334303#M11984 <P>We are trying to use the PCA9548A with a downstream master device.&nbsp; Is it possible to use the upstream master to configure the Control Block to connect to the downstream master, then after this configuration, reconfigure the upstream device to be a slave such that the downstream master can write data to the upstream slave?&nbsp; Based on the PCA9548A block diagram and app note, the PCA9548A operates like a wire after configuration with clock/data able to go in either direction.&nbsp; Do you see any issues with this plan?&nbsp;</P><P>Thanks, Ted</P> Thu, 02 Sep 2021 18:53:20 GMT https://community.nxp.com/t5/Other-NXP-Products/Using-PCA9548A-with-upstream-slave-after-configuration/m-p/1334303#M11984 twolfe 2021-09-02T18:53:20Z https://community.nxp.com/t5/Other-NXP-Products/Using-PCA9548A-with-upstream-slave-after-configuration/m-p/1335758#M12012 <P>Could you please give us your application simple diagram?</P> Tue, 07 Sep 2021 03:17:25 GMT https://community.nxp.com/t5/Other-NXP-Products/Using-PCA9548A-with-upstream-slave-after-configuration/m-p/1335758#M12012 guoweisun 2021-09-07T03:17:25Z