52 //ucSpreadSpectrumMode //#define ATOM_SS_DOWN_SPREAD_MODE_MASK 0x00000000 //#define ATOM_SS_DOWN_SPREAD_MODE 0x00000000 //#define ATOM_SS_CENTRE_SPREAD_MODE_MASK 0x00000001 //#define ATOM_SS_CENTRE_SPREAD_MODE 0x00000001 //#define ATOM_INTERNAL_SS_MASK 0x00000000 //#define ATOM_EXTERNAL_SS_MASK 0x00000002