TMS320F28377D: spi high speed

Part Number:TMS320F28377D

Hi,

F28377-SPI has high speed mode activated by SpiaRegs.***.bit.HS_MODE,If I do not enable high speed mode, configure the low speed clock to 200M with ClkCfgRegs.LOSPCP.bit.LSPCLKDIV =0.

Can I configure SPIBRR to 4 or 9 for 40M or 20M, or must I enable High Speed Mode? When should the high speed mode be used, what is the highest clock frequency in high speed mode, 200M?

thank you！