RDAIRPABPSI5UG , Rev. 2.0
10
Freescale Semiconductor, Inc.
Getting to know the Hardware
4
Getting to know the Hardware
4.1 Overview
RDAIRBAGPSI5 is an eight loops airbag system ECU.
Figure 3
shows all the main components of an airbag ECU hardware.
Table 2
lists
all the functions performed by each component.
Figure 3. Board Description
Table 2. Board Description
Name
Definition
x2 4ch Squibs Driver MC33797
x2 Four channels Squibs Driver configured in cross-coupled mode to make an eight firing loops airbag
system
Central Accelerometer MMA68xx
Central Accelerometer, also called Local Safing Sensor, designed for use in automotive airbag systems
CAN HS Transceiver MC33901
Physical interface between the CAN protocol controller of an MCU and the physical dual wires of the
CAN bus
JTAG Connector
P&E USB Multilink Debugger
FTDI Connector (RS232)
USB to serial communication connector for GUI application
32-bit MCU MPC5602P
Qorivva Power Architecture MCU for Chassis and Safety Application
PSI5 Airbag System Basis Chip MC33789
Airbag System Basis Chip (SBC) with Power Supply and PSI5 Sensor Interface
On-Board Front Airbags Deployment LEDs
2x LEDs used to indicate a front impact Deployment event: Front Driver and/or Front Passenger
24-pin connector
32-pin connector