snoopに関連するレジスタの設定項目は以下になります。
1. DMR[SD]
DMR[SD] provides data snoop disable override, but otherwise relies on the SRTTYPE/DWTTYPE in the SD/DD descriptor for determining snoop attribute.
2. DMR[DSD]
DMR[DSD] provide snoop attribute for SD/DD descriptor accesses.
3. CQMR[SD]
CQMR[SD] controls the snoop attribute when reading/fetching CDs from memory.