Reassigned pin power group

[faiz]

Hello,

On our board, we have UART power group (NVCC_UART) connected to 1.8V and SPI power group (NVCC_ECSPI) connect to 3.3V. 

We want to reassign ECSPI1_SCLK (D6) and ECSPI1_MOSI (B7) to UART3.RX and UART3.TX. Would the voltage group be 3.3V or 1.8V? 

Thanks,
Faiz

[Yuri · Accepted solution]

Hello,

    i.MX8Mm pins ECSPI1_SCLK (D6) and ECSPI1_MOSI (B7) belong to NVCC_ECSPI power group,

therefore the mentioned UART signal will be under 3.3V.

Use the i.MX Pins tool.

Pins Tool for i.MX Application Processors | NXP 

Have a great day,

Yuri

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