The device SATA host controller subsystem power management can be identified at the following levels:
- SATA controller low power-management features (defined also in the SATA standard specification, revision 2.6)
- Master standby and idle slave protocols established between SATA controller and the device PRCM through a SATA AHCI core wrapper interface (signified as SATAMAC_wrapper instance inside the Section 26.8.6.1, SATA Controller Instance Summary).
This section describes the relationships that exist between both levels of SATA Controller power management.