Allowing a master to signal all slave devices simultaneously (e.g., initiating a global low-power sleep state). Low-Power States
As modern devices pack more components into smaller frames, managing thermal limits and battery life becomes a "balancing act." SPMI provides a standardized "language" for these components to negotiate power needs in real-time, replacing older, bulkier I2C or proprietary interfaces. Technical Architecture mipi spmi specification pdf
In-depth information on command frames, addressing mechanisms (8-bit or 16-bit), and bursting capabilities. Allowing a master to signal all slave devices
