SH_RCR2_START
if ((r & (SH_RCR2_ENABLE | SH_RCR2_START)) == (SH_RCR2_ENABLE
| SH_RCR2_START))
_reg_write_1(SH_(RCR2), SH_RCR2_ENABLE | SH_RCR2_START);
_reg_write_1(SH_(RCR2), (r & ~SH_RCR2_START) | SH_RCR2_RESET);