The VSC6802API unified Application Programming Interface (API) provides a comprehensive, user friendly, and robust function library that supports all Microsemi Ethernet switch, MAC, PHY, and Optical Transport Network (OTN) Mapper products. The VSC6802API is portable to any Operating System (OS) and was developed with 32-bit CPUs as intended targets. The driver software was developed in standard C and supports multi-instance device targets. The VSC6802API package includes driver software in standard C, application example, and documentation. The architecture of the API includes five different layers: Application Interface Layer (function groups), Chip Interface Layer (register mappings), I/O Layer (register access), OS Layer (Linux, VxWorks, eCos), and Trace Layer.