SPI slave Wr_BUF interrupt and CONF control register
SLV_WR_BUF_DONE | The interrupt raw bit for the completion of write-buffer operation in the slave mode. Can not be changed by CONF_buf. |
CONF_BASE_BITLEN | The basic spi_clk cycles of CONF state. The real cycle length of CONF state, if SPI_USR_CONF is enabled, is SPI_CONF_BASE_BITLEN[6:0] + SPI_CONF_BITLEN[23:0]. |