This part is a kind of semiconductor called MSP430.

Function of this product has EasyWeb3 development board Users Manual.

Manufacturers : OLIMEX

Image and pinout :

Some of the text within the PDF file :

MSP430-EasyWeb3 development board Users Manual All boards produced by Olimex are ROHS compliant Rev. Initial, May 2011 Copyright(c) 2011, OLIMEX Ltd, All rights reserved Page 1 INTRODUCTION: MSP430-EasyWeb3 is TCP/IP board with MPS430F149 based on Andreas Dannenberg easyWeb TCP/IP. On the board, there are JTAG connector, two extension connectors, two UART interfaces terminated to extension connector EXT2, LAN connector and status leds. All this allows you to build an applications to be used in a different situations. BOARD FEATURES: MSP430F149 running Andreas' open source TCPIP stack CS8900 LAN controller + LAN transformer and RJ45 LAN connector three status LEDs for the LAN JTAG connector for MSP430F149 programming low power RS232 driver MAX3 [ ... ]

MSP430 PDF Datasheet Download