RXFIFO

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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

The RXFIFO is used to hold the receive data. The data received from the SPI interface is written into the RXFIFO. When during data transfer the RXFIFO is full, the SCLK is not toggled (the CS remains asserted) and no Quad-SPI data is lost. The Quad-SPI RX block ensures that the RXFIFO does not overflow.