The CT25205 is a robust digital IP core designed for IEEE 802.3cg 10BASE-T1S Ethernet Physical Layer. It includes PMA, PCS, and PLCA Reconciliation Sublayer blocks, enhancing compatibility with standard IEEE MACs via the MII. Featuring a fully synthesizable Verilog design, it is deployable on standard cells and FPGAs. With integrated PLCA RS, this IP provides advanced features without necessitating additional extensions, making it a vital component for Zonal Gateways SoCs.