(typically application processors or baseband ICs) and up to 16 slave devices (usually Power Management ICs or PMICs). Arbitration: To manage multiple masters, SPMI uses a Round Robin

Modern SPMI specs (v2.0+) include for advanced features:

To resolve bus contention, SPMI uses a priority-based arbitration system. This allows multiple masters or "Request Capable Slaves" (RCS) to request bus ownership.

MIPI SPMI is a standardized interface for power management in mobile devices, such as smartphones, tablets, and laptops. It provides a common interface for system-on-chip (SoC) devices, power management ICs (PMICs), and other power-related components to communicate with each other.