Dual displays require two DSI interfaces. v2.5’s low-power state efficiency ensures that pushing video to the cover display while the main display is off doesn’t drain the battery.
The MIPI D-PHY architecture consists of the following components: mipi d-phy specification v2.5 pdf
This mode is used for the bulk transfer of pixel data (e.g., from a camera image sensor to an ISP). HS mode employs low-voltage, differential signaling (typically around 200 mV swing) at very high bit rates. In v2.5, the specification officially supports data rates up to 2.5 Gbps per lane . Critically, v2.5 introduced the ability to run the clock lane in HS mode at a much higher frequency (up to 2.5 GHz) or in a "clockless" scenario using embedded clock techniques, paving the way for next-generation CSI-2 and DSI controllers. Dual displays require two DSI interfaces
The headline feature of v2.5 is the extension of the maximum HS data rate. While v2.0 topped out at 2.5 Gbps per lane, . For a 4-lane configuration, this yields a theoretical aggregate bandwidth of 18 Gbps—essential for 8K video, high-frame-rate sensors, and AR/VR displays. The headline feature of v2
: In a typical four-lane configuration, a v2.5-compliant system can achieve an aggregate data rate of Backward Compatibility
The physical lane can exist in several logical states: