User's Guide
Table Of Contents
- Introduction
- Features
- Table of Contents
- 1. Quick References
- 2. Kit Overview
- 3. Kit Setup
- 4. CARS Kit PC Evaluation Utility
- 5. System Operation
- 6. Programming Instructions
- 7. XPRO USB Driver Installation
- 8. Document Revision History
- The Microchip Website
- Product Change Notification Service
- Customer Support
- Microchip Devices Code Protection Feature
- Legal Notice
- Trademarks
- Quality Management System
- Worldwide Sales and Service
Note: The “LF Encrypted Challenge” field is not populated as this data is not transmitted to the fob.
Example: The results of a PEPS unilateral authentication sequence display in the following figure. With the
In/Out Threshold as 400.0 and the measured value distance scale as 451.3, the fob is identified as Inside the
vehicle and is highlighted in blue due to the distance scale value being greater than the threshold value.
Figure 5-16. PEPS Bilateral Authentication with Inside Localization
8. Move the fob further away from the LF antenna module, beyond the location used in step 3 but still within the
PEPS operating range.
9. Click the PEPS BA button within the PEPS Message Status window to execute the bilateral authentication
sequence. Confirm that the “LF Encrypted Challenge” field is now populated.
Example: The results of a PEPS bilateral authentication sequence display in the following figure. With the
In/Out Threshold as 400.0 and the measured value distance scale as 282.6, the fob is identified as Outside the
vehicle and is highlighted in pink due to the distance scale value being less than the threshold value.
Figure 5-17. PEPS Bilateral Authentication with Outside Localization
ATAN0219
System Operation
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User Guide
DS50003051A-page 31
Microchip Confidential: For Release Only Under Non-Disclosure Agreement (NDA)