SPI verilog\doc\Quad-SPI-IPCore.pdf ...........\doc ...........\hdl\verilog\spi_fifo_receive.v ...........\...\.......\spi_fifo_send.v ...........\...\.......\spi_sf.v ...........\...\.......\spi_tr8.v ...........\...\verilog ...........\...\.hdl\quad_spi_if.vhd ...........\...\....\user_logic.vhd ...........\...\vhdl ...........\hdl SPI verilog