TKJ Electronics » Ethernet on STM32F4DISCOVERY using external PHYHome > ARM, Development boards > Ethernet on STM32F4DISCOVERY using external PHY For you who have read about the STM32F4 Cortex-M4 processor you might know that this processor family includes a 10/100 Ethernet MAC with dedicated DMA that supports supports IEEE 1588v2 hardware, MII/RMII. This means that the only electronics needed to enable the ethernet capability is an external PHY and the Magjack
