The RTL8316 supports IEEE 802.3x full duplex flow control and half duplex back pressure control. The ability of IEEE 802.3x flow control is auto-negotiated by writing the flow control ability via MDIO. For half duplex, the RTL8316 adopts a special back pressure design to allow forwarding of one packet successfully after 48 force collisions. This back pressure algorithm can prevent the connected repeater from being partitioned due to excessive collisions. The full/half duplex flow control ability can be enabled or disabled via a hardware strap upon reset. hardware strap upon reset.