Ethernet (ETH): media access control (MAC) with DMA controller RM0033
838/1381 RM0033 Rev 9
28 Ethernet (ETH): media access control (MAC) with
DMA controller
This section applies to the whole STM32F20x and STM32F21x family, unless otherwise
specified.
28.1 Ethernet introduction
Portions Copyright (c) 2004, 2005 Synopsys, Inc. All rights reserved. Used with permission.
The Ethernet peripheral enables the STM32F20x and STM32F21x to transmit and receive
data over Ethernet in compliance with the IEEE 802.3-2002 standard.
The Ethernet provides a configurable, flexible peripheral to meet the needs of various
applications and customers. It supports two industry standard interfaces to the external
physical layer (PHY): the default media independent interface (MII) defined in the IEEE
802.3 specifications and the reduced media independent interface (RMII). It can be used in
number of applications such as switches, network interface cards, etc.
The Ethernet is compliant with the following standards:
• IEEE 802.3-2002 for Ethernet MAC
• IEEE 1588-2008 standard for precision networked clock synchronization
• AMBA 2.0 for AHB Master/Slave ports
• RMII specification from RMII consortium
28.2 Ethernet main features
The Ethernet (ETH) peripheral includes the following features, listed by category:
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