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Texas Instruments TMS320F2802, TMS320F2809, TMS320F2808, TMS320C2802 Inter-Integrated Circuit I2C

Models: TMS320F28016 TMS320F2801 TMS320F2802 TMS320F28015 TMS320C2801 TMS320F2806 TMS320F2808 TMS320F2809 TMS320C2802

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TMS320F2809, TMS320F2808, TMS320F2806

TMS320F2802, TMS320F2801, TMS320C2802

TMS320C2801, TMS320F28016, TMS320F28015

SPRS230L –OCTOBER 2003 –REVISED DECEMBER 2009

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4.10 Inter-Integrated Circuit (I2C)

The 280x device contains one I2C Serial Port. Figure 4-15shows how the I2C peripheral module interfaces within the 280x device.

The I2C module has the following features:

•Compliance with the Philips Semiconductors I2C-bus specification (version 2.1):

–Support for 1-bit to 8-bit format transfers

–7-bit and 10-bit addressing modes

–General call

–START byte mode

–Support for multiple master-transmitters and slave-receivers

–Support for multiple slave-transmitters and master-receivers

–Combined master transmit/receive and receive/transmit mode

–Data transfer rate of from 10 kbps up to 400 kbps (I2C Fast-mode rate)

•One 16-word receive FIFO and one 16-word transmit FIFO

•One interrupt that can be used by the CPU. This interrupt can be generated as a result of one of the following conditions:

–Transmit-data ready

–Receive-data ready

–Register-access ready

–No-acknowledgment received

–Arbitration lost

–Stop condition detected

–Addressed as slave

•An additional interrupt that can be used by the CPU when in FIFO mode

•Module enable/disable capability

•Free data format mode

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Peripherals

Copyright © 2003–2009, Texas Instruments Incorporated

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Product Folder Link(s): TMS320F2809 TMS320F2808 TMS320F2806 TMS320F2802 TMS320F2801 TMS320C2802

TMS320C2801 TMS320F28016 TMS320F28015

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Texas Instruments TMS320F2802, TMS320F2809, TMS320F2808, TMS320C2802, TMS320C2801, TMS320F2801 Inter-Integrated Circuit I2C

Contents

Data Manual ROM Gpio MUX ROM Timing C280x only Typical Operational Power Versus Frequency F2808 Warm Reset TMS320F2809, TMS320F2808, TMS320F2806 Xclkin Timing Requirements PLL Enabled Features Check for Getting Started Acquire the appropriate development toolsDownload starter software Download flash programming software Introduction Hardware Features 100-MHz Devices Feature TYPE1 Hardware Features 60-MHz Devices Feature Pin Assignments TMS320F2809, TMS320F2808 100-Pin PZ Lqfp Top View TMS320F2806 100-Pin PZ Lqfp Top View On the C280x devices, the VDD3VFL pin is Vddio TMS320F2801x 100-Pin PZ Lqfp Top View Bottom View Signal Descriptions Signal Descriptions CPU and I/O Power Pins ResetADC Signals Gpioa and Peripheral Signals 2 Signal Descriptions TMS320F2809, TMS320F2808, TMS320F2806 TMS320C2801, TMS320F28016, TMS320F28015 GPIO33 Functional Block Diagram Protected by the CODE-SECURITY Module Memory Maps F2809 Memory Map F2808 Memory Map F2806 Memory Map F2802, C2802 Memory Map F2801, F28015, F28016, C2801 Memory Map Addresses of Flash Sectors in F2809 Addresses of Flash Sectors in F2808Addresses of Flash Sectors in F2806, F2802 Address Range Program and Data Space Address Flash ROM Impact of Using the Code Security ModuleAddresses of Flash Sectors in F2801, F28015, F28016 Wait-states Area WAIT-STATES CommentsOTP H0 Saram Brief Descriptions 1 C28x CPUMemory Bus Harvard Bus Architecture Peripheral Bus Real-Time Jtag and Analysis Flash6 ROM 7 M0, M1 SARAMs 8 L0, L1, H0 SARAMs Boot ROMBoot Mode Selection Security Disclaimer Code Security Module Disclaimer Low-Power Modes Peripheral Interrupt Expansion PIE BlockExternal Interrupts XINT1, XINT2, Xnmi Oscillator and PLL 19 32-Bit CPU-Timers 0, 1 Peripheral Frames 0, 1, 2 PFnGeneral-Purpose Input/Output Gpio Multiplexer Control Peripherals Serial Port Peripherals Register Map Access Type Peripheral Frame 0 Registers1Peripheral Frame 1 Registers1 Name Address Range Device Emulation Registers Interrupts10. Peripheral Frame 2 Registers1 11. Device Emulation Registers External and PIE Interrupt Sources Intm INT1 INT2 INT11 INT12MUX 14. External Interrupt Registers 13. PIE Configuration and Control RegistersExternal Interrupts System Control 15. PLL, Clocking, Watchdog, and Low-Power Mode Registers1 OSC and PLL Block External Clock Signal Toggling 0 −V DD Crystal 17. Possible PLL Configuration Modes PLL Mode Remarks Pllstsclkindiv Sysclkout ClkinPLL-Based Clock Module 16. Pllcr Register Bit Definitions Loss of Input Clock Watchdog Block Low-Power Modes Block 18. Low-Power ModesLPMCR010 Oscclk Clkin Sysclkout 32-Bit CPU-Timers 0/1/2 TddrhtddrPrdhprd Pschpsc TCR.4 CPU-Timers 0, 1, 2 Configuration and Control Registers Enhanced PWM Modules ePWM1/2/3/4/5/6 #SHADOW EPWM Control and Status RegistersEPWM1 EPWM2 EPWM3 EPWM4 EPWM5 EPWM6 Size CTR = Zero Hi-Resolution PWM Hrpwm Enhanced CAP Modules eCAP1/2/3/4 Ctrphs Ctrovf OVFRST CTR=PRD CTR=CMP Size Description ECAP Control and Status RegistersECAP1 ECAP2 ECAP3 ECAP4 Enhanced QEP Modules eQEP1/2 EQEP Control and Status Registers EQEP1 EQEP2Register Description Address #SHADOW Enhanced Analog-to-Digital Converter ADC Module Sysclkout DSP Adcenclk Halt Hspclk ADCINA0ADCINA7 ADCINB0 ADCINB7 ADCINA70 ADCINB70Adclo Adcrefin ADC Connections if the ADC Is Not Used Adcresext ADC Registers ADC Registers1 Peripherals TMS320F2809, TMS320F2808, TMS320F2806 TMS320F2802, TMS320F2801, TMS320C2802SN65HVD23x Can Bus 11. eCAN-A Memory Map 12. eCAN-B Memory Map Can Register Map1 Register NameECAN-A ECAN-B Size Description Address Serial Communications Interface SCI Modules SCI-A, SCI-B SCI-A Registers1 SCI-B Registers1 13. Serial Communications Interface SCI Module Block Diagram When Spibrr = 3 to 10. SPI-A Registers 11. SPI-B Registers 12. SPI-C Registers 13. SPI-D Registers 14. SPI Module Block Diagram Slave Mode −−−−− Inter-Integrated Circuit I2C 14. I2C-A Registers Gpio MUX Sdaa SclaI2CAENCLK I2C−A C28X CPU Sysclkout Sysrs Gpiolmpsel GPIOXINT1SEL GPIOXINT2SEL Gpioxnmisel Gpio Data Registers not Eallow Protected 15. Gpio RegistersGpio Control Registers Eallow Protected 16. F2808 Gpio MUX Table GPAMUX1/2GPAMUX1 GPAMUX2 Time between samples GPyCTRL Reg GPIOx Sync Sysclkout Hardware Development Tools Device and Development Support Tool NomenclatureSoftware Development Tools Temperature Range TMSPrefix Device Family Documentation Support TMS320x280x, 2801x Peripheral Selection GuideLiterature Peripheral Guide TMS320C28x Application Programming Interface API Reference Application Reports and Software TMS320x281x to TMS320x2833x or 2823x Migration OverviewTMS320x280x to TMS320x2833x or 2823x Migration Overview C28x FPU Primer SPRA820 Software Device Support Electrical Specifications Absolute Maximum Ratings1 Electrical Characteristics Recommended Operating ConditionsMIN NOM MAX Unit Parameter Test Conditions MIN TYP MAX Unit Current Consumption Sysclkout TYP5 MAX6 SCI-A SPI-A ADC TYP4 MAX5 Reducing Current Consumption Peripheral DD Current ModuleADC I2C SCI SPI Total Power Current Consumption GraphsIDD IDDA18 Iddio Typical Operational Power Versus Frequency C280x Typical Operational Current Versus Frequency C280x Emulator Connection Without Signal Buffering for the DSP EMU0 EMU1 Trst TMS TDI TDO TCK DSP GND Tckret Jtagheader Timing Parameter Symbology General Notes on Timing ParametersTest Load Circuit 85 pF Device Clock Table TMS320x280x Clock Table and Nomenclature 100-MHz Devices Clock Requirements and Characteristics XCLKIN1 Timing Requirements PLL Enabled10. XCLKIN1 Timing Requirements PLL Disabled Input Clock Frequency Power Sequencing Power Management and Supervisory Circuit Solutions12. Power Management and Supervisory Circuit Solutions Xclkina Xclkoutb Xclkout OSCCLK/8A OSCCLK/8 13. Reset XRS Timing RequirementsXclkout XRS 14. General-Purpose Output Switching Characteristics General-Purpose Input/Output GpioGpio Output Timing Sysclkout Oscclk OSCCLK/2 Gpio Signal GPxQSELn = 1,0 6 samples Gpio Input TimingSysclkout Qualprd = 1 SYSCLKOUT/2 Output From Qualifier GPIOxn Sampling Window Width for Input SignalsCase Low-Power Mode Wakeup Timing 16. Idle Mode Timing Requirements117. Idle Mode Switching Characteristics1 Address/Data Internal 18. Standby Mode Timing Requirements 19. Standby Mode Switching CharacteristicsTest Conditions MIN NOM MAX Unit Xclkin Xclkout Standby 20. Halt Mode Timing Requirements 21. Halt Mode Switching Characteristics 23. ePWM Switching Characteristics Enhanced Control PeripheralsEnhanced Pulse Width Modulator ePWM Timing Trip-Zone Input Timing 27. eCAP Switching Characteristics 29. eQEP Switching Characteristics26. Enhanced Capture eCAP Timing Requirement1 MIN TYP MAX Unit 32. External Interrupt Switching Characteristics1 External Interrupt TimingParameter Adcsocbo 10.4 I2C Electrical Specification and Timing Serial Peripheral Interface SPI Master Mode Timing33. I2C Timing Vddio 34. SPI Master Mode External Timing Clock Phase = 0 1 2 3 4 Spistea SpisimoSpisomi Master In Data Must Be Valid 35. SPI Master Mode External Timing Clock Phase = 1 1 2 3 4 Spiclk Clock polarity =Data Valid Spisomi SPI Slave Mode Timing 36. SPI Slave Mode External Timing Clock Phase = 01 2 3 4 37. SPI Slave Mode External Timing Clock Phase = 11 2 Spisimo Data Must Be Valid On-Chip Analog-to-Digital Converter ADC Power-Up Control Bit Timing Analog Inputs ConverterConversion Modes ADCIN0 ADC Clock Remarks Sequential Sampling Mode Single-Channel Smode =AT 12.5 MHz Sample n Sample n + Simultaneous Sampling Mode Dual-Channel Smode = Detailed Descriptions 43. Flash Endurance for a and S Temperature Material1 44. Flash Endurance for Q Temperature Material146. Flash/OTP Access Timing Flash Timing 48. ROM/OTP Access Timing ROM Timing C280x onlySysclkout ns Flash Flash Random OTP WAIT-STATE Migration Issues ADDITIONS, DELETIONS, and Modifications F280x Thermal Model 100-pin GGM Results F280x Thermal Model 100-pin PZ ResultsC280x Thermal Model 100-pin GGM Results C280x Thermal Model 100-pin PZ Results F2809 Thermal Model 100-pin PZ Results ΨJTC/W Samples Package Type Pins Package Qty Eco Plan LeadOrderable Device Package Qty Eco Plan Lead TMS320F2802ZGMA Active TMS320F2802ZGMS ActiveTMS320F2806GGMA Active Microstar TMS320F2806GGMS Active TMS320F2809ZGMA Active TMS320F2809ZGMS Active GGM S-PBGA-N100 10,10 20 TYP40 MAX 4145257-3/C 12/01Page PZ S-PQFP-G100 Plastic Quad Flatpack Rfid Products ApplicationsDSP