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Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

Software starts a manual transfer by writing a 1 to the spi.Config [Man_start_com] bit. When the software writes the 1, the controller hardware starts the data transfer and transfers all the data bytes present in the TXFIFO. The [Man_start_com] bit is self-clearing. Writing a 1 to this bit is ignored if [Man_start_en] = 0. Writing a 0 to [Man_start_com] has no effect, regardless of mode.