Datasheet

1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

PmodWiFi™ Reference Manual

Revised May 24, 2016

This manual applies to the PmodWiFi rev. B

DOC#: 502-194

Other product and company names mentioned may be trademarks of their respective owners.

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Overview

The PmodWiFi provides Wi-Fi access through the Microchip

MRF24WG0MA Wi-Fi™ radio transceiver module.

Users can communicate with the IEEE 802.11g compliant chip through SPI and achieve data rates up to 54 Mbps.

1 Functional Description

The PmodWiFi provides IEEE 802.11b/g/n support for embedded applications at data rates of 1 and 2Mbps. It is

designed for use with Microchip microcontroller families (PIC18, PIC24, dsPIC33, and PIC32) and the Microchip

TCP/IP Stack (a free Microchip Application Libraries download including example applications and source code).

The TCP/IP Stack is available at www.microchip.com/wireless.

1.1 Interface

The primary communications interface with the PmodWiFi is an SPI bus. An RST pin provides the host with an

active low, asynchronous hardware reset for the PmodWiFi. The PmodWiFi also provides an active low interrupt

indicator pin (~INT), which is asserted low by the PmodWifi when data is available for the host device. The ~INT

line is de-asserted high after the data transfer is complete. The SPI SCK speed can be up to 25 MHz.

The PmodWiFi.

 IEEE 802.11-compliant RF transceiver

 Send data at 1 and 2 Mbps up to 400 m

 Serialized unique MAC address

 Integrated PCB antenna

 Radio regulation certification for the US,

Canada, Europe and Japan

 Wi-Fi certified

 Small PCB size for flexible designs 1.7“ ×

1.0” (4.3 cm × 2.0 cm)

 12-pin Pmod connector with SPI interface

 Follows Digilent Pmod Interface

Specification Type 2A

 Libraries available in resource center

Features include:

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300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodWiFi™ Reference Manual Revised May 24, 2016 This manual applies to the PmodWiFi rev. B Overview The PmodWiFi provides Wi-Fi access through the Microchip® MRF24WG0MA Wi-Fi™ radio transceiver module. Users can communicate with the IEEE 802.11g compliant chip through SPI and achieve data rates up to 54 Mbps. Features include:          The PmodWiFi. 1  IEEE 802.
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PmodWiFi™ Reference Manual Connector J1 – SPI Communications Pin Signal Description 1 ~SS Slave Select 2 3 MOSI MISO Master out/Slave in Data Master in/Slave out Data 4 SCK Serial Clock 5 6 7 GND VCC ~INT Power Supply Ground Power Supply (3.3V) Interrupt Output 8 9 10 ~RST ~WP HIB Hardware Reset Write Protect Hibernate 11 GND Power Supply Ground 12 VCC Power Supply (3.3V) Interface connector signal description. The SPI interface standard uses four signal lines.