SUPER MICRO Computer MIIC-203 RS-232 to I2C Host Adapter Ascii Fast Mode Interface, Overview

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RS-232 to I2C Host Adapter

w/ASCII Fast Mode Interface

Overview

The MCC iPort/AFM (#MIIC-203) RS-232 to I2C Host Adapter with ASCII Fast Mode Interface allows any PC, Host Computer, or Data Terminal with an RS-232 port to become an I2C Master or Slave device, transmitting or receiving I2C messages to one or more I2C devices across an I2C Bus.

PRODUCT FEATURES

Turn ANY Computer’s Serial Port into an I2C Port.

Supports Standard (100) and Fast (400) I2C Bus Activity.

High Performance Bus Co-Processor

Maximum Bus Throughput with Low Overhead.

19.2, 57.6, and 115.2 k selectable Baud Rates.

Supports Bus Master and Slave, Transmit and Receive, and INT Signaling .

Compatible with 3v to 5v I2C at up to 400kbit/s.

Compatible with iPort/AI applications.

The iPort/AFM system consists of the following components:

1)iPort/AFM Adapter

This adapter plugs into an RS-232 Port on a host computer and generates I2C Bus signals.

2)iPort Utility Pack Software

This software package, included with each iPort, includes the iPort Message Manager and Message Center applications to easily send and receive I2C Bus messages.

3)Programmer’s Reference

This section includes ASCII command interface definitions and example code to assist in developing a custom application for the iPort/AFM adapter.

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Contents 479,12 Introduction Page Table of Contents Programmer’s Reference Ascii Command Interface Definitions Page Part Model MIIC-203RS-232 to I2C Host Adapter Ascii Fast Mode Interface OverviewRS-232 Serial Port Connector System RequirementsInterconnects Packing Slip+5VDC Power Jack DB-25 Serial Port PinoutI2C Interface Connector INT, Interrupt Signal ControlConnecting to a 3.3v System Connecting to an SMBus SystemHardware Set-Up Pull-up ResistorsIPort Utility Pack for Windows IPort Message Center Introduction to Utility PackIPort Message Manager Software Installation Page I2C Message Operations Page Page Page Establish iPort Link Starting the programSelect iPort Device Basic Set-up Advanced Set-up Diagnostic Set-up iPort Only Sending Messages Master Operations To Master Transmit DataTo Master Receive Data To Slave Receive a message Uninstalling iPort Utility PackTo Slave Transmit a message Programmer’s Reference IPort/AFM Quick Start IPort/AFM Ascii Text Interface Commands Command DescriptionIPort/AFM Reset Synchronous Interface EventsStatus Display RS-232 Baud RateClose I2C Connection Set Destination I2C Slave AddressEcho/Prompt Control Flow ControlI2C General Call Control Hex Only Display ControlI2C Bus Clock Rate Control Command Menu DisplaySet iPort/AFM’s Own I2C Slave Address Interrupt Signal Control/Status Open I2C ConnectionMaster Read Message Slave Transmit Message Master Transmit Message Display Firmware Version requires V2.00+ EXtended Commands requires V2.00+Set I2C Bus Time-oUt in msec Page Issue a Read WCR command to a Xicor X9241 at slave address Display Tx bYte Count requires V2.00+ Asynchronous Interface Events Slave Transmit RequestSlave Receive Complete General Call Receive CompleteI2C Bus Time-out Detected INterrupt Signal AssertINterrupt Signal Release I2C Bus Error Detected IPort/AFM PromptsIPort/AFM Ready Slave Not AcknowledgingInvalid Command Argument Invalid iPort/AFM CommandIPort/AFM Connection Closed Slave Transmit Request Not ActiveExample Code IPort/AFM InitializationMaster Receive Message Communication Event ProcessingPage Page Page IPort/AFM Revision Report RevisionAdditional Information Micro Computer Control CorporationLimited Warranty Life Support ApplicationsLimitation of Remedies and Damages Appendix a