NXP details S32N55 processor for real time central vehicle control

NXP details S32N55 processor for real time central vehicle control

Technology News |
By Nick Flaherty

NXP Semiconductor has detailed the first member of the S32N family of vehicle super-integration processors for real-time vehicle control in software-defined vehicles (SDVs).

The NXP S32N55 processor combines 16 ARM Cortex R52 real time microcontroller cores running at 1.2GHz. The cores are in eight clusters of two so they can be used in lock-step for functional safety.

The S32N55 implements “core-to-pin” hardware isolation and virtualization technologies, its resources can be dynamically partitioned to adapt over time to be used in the optimal way to meet evolving vehicle function needs.

NXP in major software defined vehicle SDV push

Hardware-enforced isolation of vehicle functions enables automakers to safely consolidate ECUs, streamline software development and support lifetime enhancements and upgrades. Vehicle functions can be independently managed, including fault handling and reset. They can receive independent software updates with the S32N55’s safe, granular Over-the-Air (OTA) upgradeability which is a crucial capability for SDVs to enhance their functionality over time.

The cores can operate in split or lockstep mode to support different functional safety levels up to ISO 26262 ASIL D. Two auxiliary pairs of lockstep Cortex-M7 cores support system and communication management. Tightly-coupled integrated memory and 48 MB of system SRAM enable fast execution with low-latency accesses. A firewalled Hardware Security Engine provides a root of trust for secure boot, security services and key management.

Memory can be expanded with LPDDR4X/5/5X DRAM, LPDDR4X flash and NAND/NOR flash interfaces. Functional safety and security requirements are supported with memory error correction and in-line cryptography.

An integrated Time-Sensitive Networking (TSN) 2.5 Gbit/s Ethernet switch, a CAN hub for efficient, internal routing of 24 CAN FD buses, four CAN XL interfaces and a PCI Express Gen 4 interface help reduce wiring and system cost. 

The S32N family is the basis of the  S32 CoreRide central compute ecosystem that aims to provide  scalable combinations of safe, real-time and applications processing to address automakers’ diverse central compute needs.

“The S32N55 processor is the central brain for real-time vehicle control in our new S32 CoreRide platform,” said Ray Cornyn, senior vice president and general manager of automotive processors at NXP. “With a powerful combination of unrivaled real-time performance, critical hardware-enforced isolation, and vehicle networking capabilities, it can deliver more functionality with fewer devices, while reducing costs, and offering upgradeability to help improve and future-proof vehicles.”

The S32N55 is complemented with NXP’s system power management and vehicle networking devices to accelerate customer designs. The FS04 safe system power management IC, which was co-architected to support ASIL D functional safety, combined with PF53 scalable core supply for platform design, provides high-efficiency power conversion, supports low power modes and handles power sequencing.

The S32N55 is sampling to lead customers.

Details on the S32N Vehicle Super-Integration Processors.


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