TMS320F28388D: SPI communication problem (SIMO 0 output during delay) Question.

Hello everyone.

I have an SPI question.

I am using 28388D and I control LED with SPI-B.

In the existing NXP processor, the following waveform could be seen (Processor -> LED 2wire Communication: SIMO, CLK)

(Green : SPI-B SIMO, Yellow : SPI-B CLK)

In NXP Processor, CLK and SIMO are changed to standby state during delay after 1 byte transmission.

Next is the 28388D waveform.

A delay was given to make CLK wait after 1 byte transmission.
Unlike NXP, SIMO keeps at zero.

How do I change the 28388D to be like an NXP?

SPI-B Initialize Code down below

    SPI_disableModule(SPIB_BASE);

    SPI_setConfig(SPIB_BASE, DEVICE_LSPCLK_FREQ, SPI_PROT_POL0PHA0,
                  SPI_MODE_MASTER, 500000, 8);
    SPI_setEmulationMode(SPIB_BASE, SPI_EMULATION_STOP_AFTER_TRANSMIT);
    SPI_enableFIFO(SPIB_BASE);
    SPI_setTxFifoTransmitDelay(SPIB_BASE, 1);
     SPI_enableModule(SPIB_BASE);

Thank you for answer. :)