CS/CLK/MISO/MOSI signal of SPI interface direction question

CS/CLK/MISO/MOSI signal of SPI interface directions are Bi-dir in《Jetson_AGX_Xavier_Series_OEM_Product_Design_Guide_v2.0》document,but they are ouput or input separately 《JetsonAGXXavierSeriesDatasheet_DS09654001v1.1》document.Why?Which datas are right?
Look forward to your answer!
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They are bidirection as it could be master or slave in custom design. It is typo for ‘input/output’.