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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
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Revision V1.30
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Ethernet MAC Controller (EMAC)
5.21
5.21.1 Overview
This chip provides 2 Ethernet MAC Controller (EMAC) for Network application.
The Ethernet MAC controller consists of IEEE 802.3/Ethernet protocol engine with internal CAM
function for recognizing Ethernet MAC addresses; Transmit-FIFO, Receive-FIFO, TX/RX state
machine controller, time stamping engine for IEEE 1588, Magic Packet parsing engine and status
controller.
The EMAC supports RMII (Reduced MII) interface to connect with external Ethernet PHY.
5.21.2 Features
Supports IEEE Std. 802.3 CSMA/CD protocol
Supports Ethernet frame time stamping for IEEE Std. 1588
– 2002 protocol
Supports both half and full duplex for 10 Mbps or 100 Mbps operation
Supports RMII interface
Supports MII Management function to control external Ethernet PHY
Supports pause and remote pause function for flow control
Supports long frame (more than 1518 bytes) and short frame (less than 64 bytes) reception
Supports 16 entries CAM function for Ethernet MAC address recognition
Supports Magic Packet recognition to wake system up from power-down mode
Supports 256 bytes transmit FIFO and 256 bytes receive FIFO
Supports DMA function