One point that needs to be made is that the Concerto™ Ethernet controller has a fully integrated media access controller or MAC. A differentiator from the Stellaris® family of devices is that there is no network physical interface embedded within the Concerto device, it is a MAC, there is no PHY. The MAC layer provides the transmit and receive processing for Ethernet frames and also provides the interface to the PHY layer via an internal media independent interface, an MII. The Ethernet controller in Concerto conforms to IEEE 802.3 specifications, and supports both 10BASE-T and 100BASE-T standards. This module enables network connectivity and embedded web servers to run on a device that can also run embedded control loop code. The controller also supports full and half duplex at both 10 or 100 Mbps. The Ethernet controller provides many options which allow the user to configure the module, as needed. Some of these options include a programmable MAC address, configurable interrupts, CRC error rejection control, promiscuous mode, and an LED indicator selection. Other features of the controller include power savings mode, power down, automatic cross-over detection, programmable transmit amplitude, and automatic polarity correction. One great feature is integration of hardware assistance for an IEEE 1588 PTP enabled system. The IEEE 1588 adds a clock and ID address to permit synchronized operation between devices that have this additional feature. TI is the only company that supports motion with the 1588 functionality. The Ethernet controller also includes a promiscuous mode which gives it the ability to receive all packets sent on the network, very similar to the CAN function. This is advantageous because the device can receive all network traffic vs. only network traffic intended for a specific MAC address.