ASC_MC_SDTR_DONE
AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, sdtr_done);
AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);
AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word);