RI_TO_53
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_WTO_R1), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_WTO_XA1), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_WTO_XS1), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_RTO_R1), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_RTO_XA1), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_RTO_XS1), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_WTO_R2), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_WTO_XA2), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_WTO_XS2), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_RTO_R2), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_RTO_XA2), RI_TO_53);
CSR_WRITE_1(dev, SELECT_RAM_BUFFER(i, B3_RI_RTO_XS2), RI_TO_53);