SPI Chip Select Control in FIFO mode.(XMC4100)

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I have configured XMC 4100 as SPI master,which is interfaced to SPI EEPROM. I want to independently control the chip select irrespective of frame length, So I kept Frame-Length=64, and Wordlength = 8; and I am using FIFO mechanism. My intended operation is:
1->Chip Select low.
2->Transfer bytes( Not fixed).
3->CS High.

How should I configure to achieve this?
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