Datasheet

page 26
Ethernet MCU cards
Ethernet is a popular computer networ king
technology for local area networks (LAN).
Systems communicating over Ethernet
divide a stream of data into individual
packets called frames. Each frame contains
source and destination addresses and
error-checking data so that damaged
data can be detected and re-transmitted.
EasyMx PRO
™
v7 for STM32 features
standard RJ-45 connector which enables
microcontrollers that support Ethernet
communication to establish a connection
with a computer, router or other devices.
All four Ethernet lines (TPOUT+, TPOUT-,
TPIN+ and TPIN-) are routed directly to the
MCU card socket and cannot be accessed
via PORT headers. Additional signalization
LEDs (green and yellow) are provided on
the Board next to RJ-45 connector.
Ethernet
communication
EasyMx PRO
v7
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
MCU CARD SOCKET
TX_PTX_N
RX_PRX_N
LED1 LED2
TD+
CT
TD-
RD+
RD-
CT
A2A1
K1 K2
CN25
RJ45
R46
51
R49
51
R54
51
R55
51
R44 270
R60
270
LD77
LD75
FP3
C33
10nF
C32
10nF
VCC-3.3V
ETHERNET
CONNECTOR
LED1
LED2
TX_P
TX_N
RX_P
RX_N
LED1
LED2
VCC-3.3V
communication
Ethernet communication (TPOUT+,
TPOUT-, TPIN+ and TPIN-) and
signalization lines (LED1, LED2)
are routed directly to the MCU card
socket and can be used only with
a Ethernet MCU cards (ETH MCU,
HP ETH MCU, Page 11).
Figure 12-1: Ethernet connection schematic