W7100A-64QFN WIZnet

Internet Embedded MCU W7100A Datasheet Internet Embedded MCU W7100A Datasheet Version 1.12 2011 WIZnet Co., Inc. All Rights Reserved. For more information, visit our website at UInternet Embedded MCU W7100A Datasheet Table of Contents 1 Overview ..................................................................................... 11 1.1 Introduction .................................................................................. 11 1.2 W7100A Features ............................................................................ 11 1.3 W7100A Block Diagram & Features ....................................................... 12 1.3.1 ALU (Arithmetic Logic Unit) ....................................................... 12 1.3.2 TCPIPCore ............................................................................ 14 1.4 Pin Description .............................................................................. 16 1.4.1 Pin Layout ............................................................................ 16 1.4.2 Pin Description ....................................................................... 17 1.4.2.1 Configuration ................................................................... 18 1.4.2.2 Timer ............................................................................ 19 1.4.2.3 UART ............................................................................. 19 1.4.2.4 DoCD Compatible Debugger ................................................ 19 1.4.2.5 Interrupt / Clock .............................................................. 19 1.4.2.6 GPIO ............................................................................. 20 1.4.2.7 Media Interface ................................................................ 21 1.4.2.8 Network Indicator LED ........................................................ 22 1.4.2.9 Power Supply Signal ........................................................... 22 1.5 64pin package description ................................................................. 24 1.5.1 Difference between 100 and 64pin package .................................... 24 2 Memory ....................................................................................... 26 2.1 Code Memory ................................................................................ 26 2.1.1 Code Memory Wait States .......................................................... 28 2.2 Data Memory ................................................................................. 29 2.2.1 Data Memory Wait States .......................................................... 29 2.3 External Data Memory Access ............................................................. 29 2.3.1 Standard 8051 Interface ............................................................ 30 2.3.2 Direct Interface ...................................................................... 31 2.4 Internal Data Memory and SFR ............................................................ 32 2.5 SFR definition ................................................................................ 33 2.5.1 Program Code Memory Write Enable Bit ......................................... 33 2.5.2 Program Code Memory Wait States Register .................................... 33 2.5.3 Data Pointer Extended Registers .................................................. 35 2.5.4 Data Pointer Registers .............................................................. 35 2.5.5 Clock Control Register .............................................................. 36 2.5.6 Internal Memory Wait States Register ............................................ 37 Copyright 2011 WIZnet Co., Inc. All rights reserved. Ver. 1.12 2