5B GPIO function 6, I2S1, where is the LRCK?

When GPIO connector was set to function 6, I found I2S1_SDO2_M0, I2S1_SDO1_M0, I2S1_MCLK_M1 and I2S1_SCLK_M1. I couldn’t find the LRCK signal. It is required for I2S operation according to I2S specification. If those pins weren’t for I2S, then what they were for, TDM, PCM or others?

Thank you,


How did you solve this problem in the end?

I got no answer. Move to TI ecosystem.