RDAIRBAGPSI5 Airbag Reference Platform

Document created by Juan Rodarte Employee on Feb 6, 2020
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The Freescale Airbag Reference Platform (ARP) is an application demonstrator system which provides an airbag Electronic Control Unit (ECU) implementation example using complete Freescale standard products for the growing automotive safety segment. The GUI firmware does not constitute a true airbag application but is intended to demonstrate features and capabilities of Freescale's standard products aimed at the airbag market.





MPC560xP|32-bit MCU|Chassis-Safety | NXP Qorivva 32-bit Microcontroller
  • Scalable MCU family for safety applications
  • e200z0 Power Architecture 32-bit core up to 64 MHz
  • Scalable memory, up to 512 KB flash
MC33789 | Airbag Power Supply and PSI5 Sensor Interface | NXP Airbag System Basis Chip (PSI5)
  • Power supply for complete ECU
  • Up to four Satellite Sensor interfaces (PSI5)
  • Up to nine configurable switch input monitors for simple switch, resistive and Hall-effect sensor interface
  • Safing block and watchdog
  • LIN 2.1 physical layer interface
MMA68xxECU Local X/Y Accelerometer
  • ±20 g to ±120 g full-scale range, independently specified for each axis
  • SPI-compatible serial interface
  • 10-bit digital signed or unsigned SPI data output
  • Independent programmable arming functions for each axis
  • 12 low-pass filter options, ranging from 50 Hz to 1000 Hz
MC33797 | Four Channel Squib Driver IC | NXP Four Channel Squib Driver
  • Four channel high-side and low-side 2.0 A FET switches
  • Externally adjustable FET current limiting
  • Adjustable current limit range: 0.8 to 2.0 A
  • Diagnostics for high-side safing sensor status
  • Resistance and voltage diagnostics for squibs
  • 8-bit SPI for diagnostics and FET switch activation
MC33901High Speed CAN Physical Layer
  • ISO11898-2 and -5 compatible
  • Standby mode with remote CAN wake-up on some versions
  • Very low current consumption in standby mode, typ. 8 μA
  • Excellent EMC performance supports CAN FD up to 2 Mbps



High G Collision Satellite Sensor
  • ±60 g to ±480 g full-scale range
  • PSI5 Version 1.3 Compatible (PSI5-P10P-500/3L)
  • Selectable 400 Hz, 3 pole, or 4 pole low-pass Filter
  • X-axis (MMA52xx) and Z-axis (MMA51xx) available