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Processors Analysis and Count

Our analysis and count of processors covers common modules and components of the Model S and X.  This list is based on our analysis of the vehicles and various public documents in the 2016 era. Chips and locations can change over time and over various models, so this is just more of a snapshot in time. It’s also likely some processors shown may be merged into a single module with a single CPU. This is especially true of the Model 3.

NVIDIA Tegra 3 CPU board

NVIDIA Tegra 3 CPU board from S/X MCU1

Name Area Notes Sets CPUs Sub-total
ABS (Anti-lock Braking) ? 1 1 1
AC Motor Inverter/Charger Rear 1 2 2
Active Cruise Control ? Cars built after 14-Sep-2014 1 1 1
Air Suspension ? Continental 1 1 1
AM/FM/HD radio Dash Panasonic 1 1 1
Audio System Dash PIC18f2550 1 1 1
Autopilot 1 Camera CPU* Windshield Mobileye EyeQ3 1 1 1
Autopilot 1 Processor* Windshield Freescale SPC5603 1 1 1
Autopilot 2.0 Processors* Dash Nvidia PX2 & one Freescale CPU 1 2 2
Battery Sub-Module Battery 16 in 85/90 kWh, 14 in 60/70 kWh models 16 1 16
Bluetooth Dash 1 1 1
Charger Module Rear Seat 1-Standard, 2-optional 2 1 2
Connectivity – 3G/LTE Dash Sierra Wireless AR8550 (3G),  later AR755X (LTE) 1 1 1
Door Handle Controller Doors 4 1 4
Folding Mirror Controller ? 1 1 1
FOB Receiver ? 1 1 1
GPS ? 1 1 1
HVAC (Heating/Air Conditioning) Dash UPD70F3628GCA 32-Bit MCU 1 1 1
Homelink Front Johnson Controls 1 1 1
Instrument Display Dash Nvidia Tegra 2 1 1 1
Main Display, 17″ Dash Nvidia Tegra 3 1 1 1
Mobile Charger External 1 1 1
Parking Brake ? TI TMS320F28034PNQ 32-Bit MCU 1 1 1
Parking Sensors ? 1 1 1
Power Steering Front ZF Lenksysteme 1 1 1
Rear Camera Rear OmniVision 1 1 1
Rear Power Liftgate Rear MC9S12XEP100CAG 16-Bit MCU 1 1 1
Rear Taillights Rear 2 1 2
Safety Restraints Controller ? 1 1 1
Seat Controller Seats Fisher Dynamics 2 1 2
Security module ? 1 1 1
Side Window Controllers Sides Inteva Products 4 1 4
Sunroof controller ? Freescale MC33742PEG 1 1 1
Thermal Controller ? Freescale C9S12XEP100MAG 16-Bit MCU 1 1 1
TPMS (Tire Pressure Monitoring) Rear Baolong (early cars) Continental (later) 1 1 1
Traction Control ? 1 1 1
Body Control Unit Below Dash Freescale MC9S12XEP100CAG 16-Bit MCU 1 2 2
Wiper control w/rain detect Front 1 1 1
XM Satellite Dash 1 1 1
Total CPUs 65

* Total only include AP1 (not both AP1 and AP2 processors). AP2 also includes a GPU, not shown.

2 thoughts on “Processors Analysis and Count

  1. Aliey says:

    How many of the controllers are connected to CAN bus? And what protocol had been used?

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