SSCR1_SPO
#define SSCR1_SClkIactL (SSCR1_SPO*0) /* Sample Clock Inactive Low */
#define SSCR1_SClkIactH (SSCR1_SPO*1) /* Sample Clock Inactive High */
chip->cr1 &= ~(SSCR1_SPO | SSCR1_SPH);
((spi->mode & SPI_CPOL) ? SSCR1_SPO : 0);
| SSCR1_SPH | SSCR1_SPO | SSCR1_LBM)
| SSCR1_SPH | SSCR1_SPO | SSCR1_LBM)
| SSCR1_SPH | SSCR1_SPO | SSCR1_LBM)