The SPMI bus is widely used in mobile devices, such as:
| Feature | SPMI | I2C | SMBus | PMBus | |----------------|---------------|----------------|-----------------|----------------| | Primary use | Power mgmt (SoC-PMIC) | Peripherals | Low-speed system | Power converters | | Max speed | 15 MHz | 3.4 MHz | 100 kHz | 1 MHz | | Multi-master | Yes (robust) | Yes (basic) | Yes (limited) | No (single master) | | Voltage | 1.8 V typical | 3.3-5V | 3.3V | 3.3V | | Power optimized| Yes (DVS, sleep commands) | No | No | Partial | spmi bus
The System Power Management Interface (SPMI) bus is a communication interface used in electronic systems to manage power consumption and control power-related functions. It is a standardized interface that enables communication between different components of a system, such as power management controllers, voltage regulators, and other peripherals. The SPMI bus is widely used in various applications, including mobile devices, laptops, and other battery-powered systems, where power management is crucial to extend battery life and reduce power consumption. The SPMI bus is widely used in mobile