MIKROE-972 mikroElektronika, MIKROE-972 Datasheet - Page 26

• Manufacturer Part Number: MIKROE-972
• Description: Development Boards & Kits - ARM EASYMX PRO v7 ARM STELLARIS CORTEX-M3
• Manufacturer: mikroElektronika

Specifications of MIKROE-972

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: LM3S9B95
• Core: ARM Cortex M3
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 7 VAC to 23 VAC, 9 VDC to 32 VDC

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Figure 12-1: Ethernet connection schematic
LED
LD6
LD5
LED
VCC-3.3V
VCC-3.3V
CN12
RJ45
TD+
RD+
TD-
RD-
CT
CT
R39
2K2
R51
2K2
10nF
C31
ETH-LEDB
ETH-LEDA
VCC-3.3V
FP2
C32
10nF
J11
J12
R44
51
R45
51
R48
51
R49
51
TPO_N
TPO_P
TPI_N
TPI_P
PF2
PF3
PF3
11
13
15
17
19
21
23
25
1
3
5
7
9
2
4
6
8
10
12
14
16
18
20
22
24
26
PF2
MCU CARD SOCKET
DATA BUS
Ethernet
communication
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
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.
™
v7 for Stellaris
®
features
Enabling Eth. LEDs
In order to enable Ethernet LEDs,
you must place J12 and J11
jumpers. This connects the LEDA
and LEDB lines to PF3 and PF2
microcontroller pins.
Figure 12-2: Enabling ethernet
LEDs (photo on the right)
EasyMx PRO
v7