Microchip Technology SAMA5D3 XPLAINED, Руководство пользователя

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SAMA5D3
ETHERNET DEVELOPMENT SYSTEM
USER’S GUIDE

2018 Microchip Technology Inc. DS50002789A-page 11
Chapter 1. Overview
1.1 INTRODUCTION
The Microchip SAMA5D3 Ethernet Development System (EDS) Board is an
MPU-based platform for evaluating Ethernet switch and PHY products. Compatible
switch and PHY evaluation boards connect to the EDS board via either an RGMII con-
nector or an RMII connector. These daughter boards are available separately. The EDS
board is not intended for stand-alone use and has no Ethernet capabilities when no
daughter board is connected. See
Figure 1-1 .
The SAMA5D3 EDS board comes with pre-installed Linux and Ethernet drivers. When
mated to a switch evaluation board, the included software can run protocols, such as
RSTP, DHCP, and PTP (1588). Users can also access registers and statistics counters
in the PHY or switch, set up VLAN and other configurations in a switch, and perform
traffic testing to/from the MCU. Source code is available for download from the website
for this board, and users may modify and append to it for their needs.
This board is built around a Cortex
®
-A5-based processor on-board SDRAM and Flash
memory, two Ethernet MACs (one gigabit and one 100 Mbit), three USB ports, an SD
card slot, and a Serial UART interface. It is similar to the SAMA5D3 Xplained Evalua-
tion Board (SAMA5D3-XPLD) but with the PHYs removed and replaced by the RMII
and RGMII connectors. The two boards share the same development environment.
FIGURE 1-1: SAMA5D3 EDS BOARD FUNCTIONAL BLOCK DIAGRAM
SAMA5D36
MCU
Et
h
e
rn
e
t
RG
M
II
Po
rt
Hi
gh
‐
sp
ee
d
Co
n
n
ec
to
r
Ethernet RMII Port
D ‐ sub Connector
SDRAM NAND Flash
USB Port A
Micro AB
USB Port B
USB Port C
SD Card Slot
Power
12V Barrel Jack
Regulators
JTAG Header
RGMII/MII
RMI
I
MDIO
MD
IO
5V
12V
3.
3
V
3.3V
VDDIOP1
Serial UART
SPI / I2C
2.5V
EMAC
GM
A
C