McBSP- SPI DR0, DX0 setings open drain or as a push pull

Hi,!

Please help, i use McBSP as SPI and I can not find where to set the output ports DR0, DX0 as open drain or as a push pull. They are always in a low state,  please tell me which registers to use or where to search

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This DX0 DR0  from DM6437 - signal after the command - low. SPI device does not work



This MOSI, MISO  from other chip C8051 - signal after the command - high port .SPI device does work