TMS320C6000 DSPInter-Integrated Circuit (I2C) ModuleReference GuideLiterature Number: SPRU175AOctober 2002IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections,modifications, enhancements, improvements, and other changes to its products and services atany time and to discontinue any product or service without notice. Customers should obtain thelatest relevant information before placing orders and should verify that such information is currentand complete. All products are sold subject to TI’s terms and conditions of sale supplied at thetime of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time ofsale in accordance with TI’s standard warranty. Testing and other quality control techniques areused to the extent TI deems necessary to support this warranty. Except where mandated bygovernment requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers areresponsible for their products and applications using TI components. To minimize the risksassociated with customer products and applications, customers should provide adequate designand operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under anyTI patent right, copyright, mask work right, or other TI intellectual property right relating to anycombination, machine, or process in which TI products or services are used. Informationpublished by TI regarding third party products or services does not constitute a license from TIto use such products or services or a warranty or endorsement thereof. Use of such informationmay require a license from a third party under the patents or other intellectual property of that thirdparty, or a license from TI under the patents or other intellectual property of TI.Reproduction of information in TI data books or data sheets is permissible only if reproductionis without alteration and is accompanied by all associated warranties, conditions, limitations, andnotices. Reproduction of this information with alteration is an unfair and deceptive businesspractice. TI is not responsible or liable for such altered documentation.Resale of TI products or services with statements different from or beyond the parameters statedby TI for that product or service voids all express and any implied warranties for the associatedTI product or service and is an unfair and deceptive business practice. TI is not responsible orliable for any such statements.Mailing Address:Texas InstrumentsPost Office Box 655303Dallas, Texas 75265Copyright 2002, Texas Instruments IncorporatedContentsiii Contents1 Introduction to the I2C Module 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Features 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Features Not Supported 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Functional Overview 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operational Details 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 Input and Output Voltage Levels 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Data Validity 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Operating Modes 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 START and STOP Conditions 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5 Serial Data Formats 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.1 7-Bit Addressing Format 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.2 10-Bit Addressing Format 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.3 Free Data Format 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.4 Using a Repeated START Condition 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . …
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