PSI5-HOST Peripheral Sensor Interface (PSI5) Host Controller
The PSI5-HOST IP core is a configurable automotive Peripheral Sensor Interface (PSI5) host controller implementing the ECU side of PSI5 communication systems, supporting PSI5 Specification v2.3 with backward compatibility to PSI5 v1.3. It enables robust communication between ECUs and automotive sensors using a low-cost two-wire interface over sensor power lines.
The core supports synchronous and asynchronous modes, ECU-to-sensor downstream communication via tooth-gap or pulse-width encoding, and sensor-to-ECU Manchester-coded upstream messaging.
Safety-oriented features include programmable watchdog timing slot monitoring, receive frame timestamps, and CRC or parity-based data protection per the PSI5 specification, enabling integration into ISO 26262-oriented systems. Register access is performed via an AMBA APB interface. The silicon-proven core is rigorously verified, with optional functional safety documents and diagnostic features aiding ISO 26262 integration.