SH_RCR2_ENABLE
if ((r & (SH_RCR2_ENABLE | SH_RCR2_START)) == (SH_RCR2_ENABLE
_reg_write_1(SH_(RCR2), SH_RCR2_ENABLE | SH_RCR2_START);
_reg_bset_1(SH_(RCR2), SH_RCR2_ENABLE);