MIKROE-2796 Datasheet MIKROE-2796 | P1-P3

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BroadR-Reach click

PID: MIKROE-2796

Weight: 26 g

BroadR-Reach click brings the industry grade communication standard to the mikroBUS™,

which is built to be used in an Ethernet-based open network. The click board is equipped with

the BCM54811 Transceiver from Broadcom Limited, which is used to provide the hardware

PHY layer for the network, and the W3150A+ from WizNet, a hardware LSI protocol stack, that

provides an easy and low-cost solution for high-speed Internet connectivity for digital devices by

allowing simple installation of TCP/IP stack in the hardware.

BroadR-Reach® point-to-point Ethernet PHY technology was developed by Broadcom Limited.

BroadR-Reach® technology is a robust Ethernet physical layer interface, designed for use in

noisy environments and harsh conditions, such as in industrial networking applications. This

technology allows multiple systems to simultaneously access information over the unshielded

single twisted pair cable, reducing connectivity costs and cabling weight. As such, it offers a

great alternative to older, rather limited standards used so far, and enables faster data rates to be

transferred over the existing cable networks.

HowdoestheBroadR‐Reachclickwork?

BroadR-Reach® can be used to establish full duplex Ethernet-based connectivity for applications

at 100Mbps over a single, unshielded twisted pair cable. This is possible because of the used

signal modulation. These attributes make this communication standard robust and immune to

interference and as such, it is an ideal solution for industrial network applications or networks in

any other areas with a lot of electromagnetic interferences (EMI).

BroadR-Reach click uses the physical layer IC, also known as the PHY, labeled as BCM54811

and produced by Broadcom. This IC is used for transmitting and receiving the signal on the

network, on a physical level. The BCM54811 IC on click board is configured by a small, eight

pin PIC16F18313 microcontroller, to work with the BroadR-Reach® communication standard.

This onboard microcontroller also sets the BroadR-Reach® Master/Slave configuration, as well

as the operating mode of 10Mbps/100 Mbps. The desired communication and operational mode

can be selected by two small DIP switches on the click board. For more information about the

position of the switches, refer to the Onboard settings and indicators table, below.

BroadR-Reach click has been designed to demonstrate and test 10 Mbps BroadR-Reach and 100

Mbps BroadR-Reach connectivity. However, the BCM54811 as a device is a triple-speed

10/100/1000BASE-T Gigabit Ethernet (GbE) transceiver. In addition to 10Mbps and 100Mbps

BroadR-Reach connectivity, the transceiver can support 1000BASE-T, 100BASE-TX and

10BASE-T on standard Category 5 UTP cable. The 10BASE-T Ethernet can also run on standard

categories 3, 4, and 5 UTP. The BCM54811 is designed to exceed IEEE specifications for noise

cancellation and transmission jitter, providing consistent and reliable operation over the broadest

range of existing cable infrastructures. Depending on the cable type used, it can reach up to

300m at 100Mbps or 500m at 10Mbps. The BCM54811 is fully compliant with the RGMII and

MII interface specifications, allowing compatibility with industry-standard Ethernet MACs and

switch controllers.

The W3150A+ LSI protocol stack is used to send the data to the BCM54811 IC, which takes

care of the low-level communication. The protocol stack IC itself uses the SPI interface for

communication directly with the host MCU and it takes care of the proper addressing, TCP/IP

stack support and other tasks needed for the network communication. It uses the standard MII

(Media Independent Interface) to communicate with the Ethernet PHY chip.

MikroElektronika provides libraries that help with the development of own application, by

simplifying the communication between the MCU and the W3150A+ and thus, speeding up the

firmware development.

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Specifications

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Type Ethernet

Applications

Itcanbeusedforrealisingnetworkinindustrialenvironment,automotiveindustryand

otherplacesthatrequireagoodandreliableEthernet‐basedopennetwork. 

On‐board

modules

BCM54811BroadR‐ReachcapableEthernetPHYICfromBroadcom,W3150A+hardware

LSIprotocolstackbyWizNet,PIC16F18313controllerfromMicrochip. 

KeyFeatures

Robustandreliableinterface,designedtobeusedinindustrialandnoisyenvironments,

onlyonetwistedpairrequiredforthefullduplexcommunication.

Interface GPIO,SPI

InputVoltage 3.3V

Clickboardsize L(57.15x25.4mm)

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Pinoutdiagram

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ThistableshowshowthepinoutonBroadR‐Reachclickcorrespondstothepinoutonthe

mikroBUS™socket(thelattershowninthetwomiddlecolumns).

Notes Pin

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Pin Notes

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1 AN PWM 16 NC

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Reset

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RST 2 RST INT 15 INT Interruptpin

P1-P3 P4-P6

MIKROE-2796

Mfr. #:

Buy MIKROE-2796

Manufacturer:

Mikroe

Description:

Ethernet Development Tools BroadR-Reach click

Lifecycle:

New from this manufacturer.

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MIKROE-2796