reset_n reset_n request request write write ready ready spi_miso spi_miso spi_mosi spi_mosi spi_clk spi_clk spi_tx_data[7:0] spi_tx_data[7:0] HEXRADIX spi_rx_data[7:0] spi_rx_data[7:0] HEXRADIX spi_busy spi_busy spi_enable spi_enable cmd_reg[7:0] cmd_reg[7:0] HEXRADIX cnt_reg[15:0] cnt_reg[15:0] HEXRADIX sbuf_reg[6:0] sbuf_reg[6:0] HEXRADIX addr[8:0] addr[8:0] HEXRADIX data_out[7:0] data_out[7:0] HEXRADIX data_in[7:0] data_in[7:0] HEXRADIX wr_en wr_en spi_ss_io[1:0] spi_ss_io[1:0]