### Solution Description
An automotive Ethernet to industrial Ethernet adapter board, utilizing the TJA1101 automotive Ethernet PHY compliant with **IEEE 100BASE-T1** standard, for back-to-back data passthrough with an industrial Ethernet PHY.
### Key Features
- DC 12 V input, no need to distinguish positive and negative poles
- Conversion between 100BASE-T1 and 100BASE-TX
- Supports 100 Mbit/s transmission, unshielded twisted pair cable can reach over 15 m
- Simple chip configuration, automotive Ethernet PHY can be set as master or slave via jumper
### Application Directions
- Main applications: Automotive infotainment system development, automotive Ethernet communication debugging
- Extended applications: Dashcams
### Demo Features
- Power input without distinguishing positive and negative poles
- Automotive Ethernet to industrial Ethernet conversion
- Reserved SMI interface for debugging
- Complete hardware and software reference materials
Functional Block Diagram
