Specifications

Ref# 420826 Intel
®
Atom™ processor CE4100 99
Platform Design Guide
Intel Confidential
8.3 Gigabit Ethernet
The Gigabit Ethernet Media Access Controller (GbE MAC) is based on Intel’s fourth
generation gigabit MAC. The GbE MAC provides a standard IEEE 802.3 Ethernet interface for
1000BASE-T, 100BASE-TX, and 10BASE-T applications. The controller is capable of
transmitting and receiving data rates of 10/100/1000 Mbps.
Through the GbE MAC interface, the Intel
®
Atom™ processor CE4100 can be connected to
an external PHY, which can support Reduced Ethernet (RMII) and Reduced GMII (RGMII).
The GbE MAC includes a single Management Data Interface (MDI), Management Data
Input/Output (MDIO) and Management Data Clock (MDC). The single Management Data
Interface is used to communicate, control, and configure the PHY device interfacing to the
GbE port.