The Peripheral IP Suite enhances the microcontroller IP offerings by including various interface cores tailored for the 8051 architecture. It includes the Four-Wire Slave Interface (M4WIS), the Two-Wire Slave Interface (M2WIS), and the 1-Gigabit UDP/Ethernet MAC (UDPMAC) core. These peripherals extend the interface capabilities of the standard M8051W and M8051EW cores, encompassing UDP datagram and Ethernet MAC functionalities with integral DMA, configurable packet FIFOs, and a RGMII interface.