TJA1103EVB Evaluation Board NXP Semiconductors TJA1103EVB Evaluation Board supports the functional evaluation of the 100BASE-T1 Ethernet PHY TJA1103. The TJA1103 supports the rapid expansion of Ethernet to the edge of the network. All configuration options can be selected through jumpers, and all logic interfaces can be accessed via pin headers. This results in the board adapting flexibly to different application use cases.