Spmi Interface ((new)) Jun 2026

: A single bus can support up to 4 master devices and 16 slave devices . Speed Classes : High Speed (HS) : 32 kHz to 26 MHz. Low Speed (LS) : 32 kHz to 15 MHz.

SPMI communication is packet-based. Every transaction follows a specific structure. spmi interface

In modern smartphones and IoT devices, power efficiency is paramount. While I²C is ubiquitous, it has limitations in power management scenarios. : A single bus can support up to

By replacing numerous legacy point-to-point connections with a single shared bus, SPMI significantly reduces pin counts, simplifies PCB design, and enables advanced real-time power scaling techniques. Core Technical Architecture SPMI significantly reduces pin counts

spmi_bus: spmi@c42d000 compatible = "qcom,spmi-pmic-arb"; reg = <0xc42d000 0x4000>; #address-cells = <1>; #size-cells = <0>;