In summary, the MaxLinear PCIe UARTs have anywhere from two to eight UART channels. The PHY and endpoint controller are integrated in the chip. The SPI interface allows for external EEPROM. Additionally, the chip offers an on chip buck regulator and has sixteen GPIO with an expansion port interface available on the four and eight channel devices. Each of these PCIe UARTs have been certified compliant by the PCI SIG organization. Finally, MaxLinear offers evaluation kits which include: evaluation boards, schematics, layout and gerber files and design guidelines.