Manuals / Texas Instruments / Home Audio / Stereo System

Texas Instruments TMS320C6727, TMS320C6726, TMS320C6722, 4.15.1 I2C Device-SpecificInformation

Models: TMS320C6726 TMS320C6722 TMS320C6727

1 114

Download 114 pages 15.41 Kb

Page 93

4.15.1 I2C Device-Specific Information

TMS320C6727, TMS320C6726, TMS320C6722

Floating-Point Digital Signal Processors

www.ti.com

SPRS268E –MAY 2005 –REVISED JANUARY 2007

4.15 Inter-Integrated Circuit Serial Ports (I2C0, I2C1)

4.15.1 I2C Device-Specific Information

Having two I2C modules on the C672x simplifies system architecture, since one module may be used by the DSP to control local peripherals ICs (DACs, ADCs, etc.) while the other may be used to communicate with other controllers in a system or to implement a user interface. Figure 4-37is block diagram of the C672x I2C Module.

Each I2C port supports:

∙Compatible with Philips® I2C Specification Revision 2.1 (January 2000)

∙Fast Mode up to 400 Kbps (no fail-safe I/O buffers)

∙Noise Filter to Remove Noise 50 ns or less

∙Seven- and Ten-Bit Device Addressing Modes

∙Master (Transmit/Receive) and Slave (Transmit/Receive) Functionality

∙Events: DMA, Interrupt, or Polling

∙General-Purpose I/O Capability if not used as I2C

CAUTION

The C672x I2C pins use a standard ±8 mA LVCMOS buffer, not the slow I/O buffer defined in the I2C specification. Series resistors may be necessary to reduce noise at the system level.

C672x I2C Module

Clock Prescaler

Control

Prescaler

Own Address

I2CPSCx

I2CCOARx

Register

Register

Slave Address

I2CSARx

Noise

Bit Clock Generator

Register

I2Cx_SCL

Clock Divide

Filter

I2CCLKHx

I2CCMDRx

Mode Register

High Register

Clock Divide

Extended Mode

I2CCLKLx

I2CEMDRx

Low Register

Register

Data Count

I2CCNTx

Register

Transmit

Transmit Shift

Peripheral ID

I2CXSRx

I2CPID1

Register 1

Register

Peripheral ID

I2CPID2

I2Cx_SDA

Noise

I2CDXRx

Transmit Buffer

Register 2

Filter

Interrupt/DMA

Interrupt Enable

Receive

I2CIERx

Register

I2CDRRx

Receive Buffer

Interrupt Status

I2CSTRx

Register

Receive Shift

I2CRSRx

I2CSRCx

Interrupt Source

Register

Register

Control

Pin Function

Pin Data Out

I2CPFUNC

I2CPDOUT

Register

Register

Pin Direction

Pin Data Set

I2CPDIR

I2CPDSET

Register

Register

Pin Data In

Pin Data Clear

I2CPDIN

I2CPDCLR

Register

Register

Peripheral

Configuration

Bus

Interrupt DMA

Requests

Figure 4-37. I2C Module Block Diagram

Submit Documentation Feedback

Peripheral and Electrical Specifications

93

Image 93

Texas Instruments warranty TMS320C6727, TMS320C6726, TMS320C6722, Floating-PointDigital Signal Processors

Contents

TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors1 TMS320C6727, TMS320C6726, TMS320C6722 DSPs 1.1 FeaturesFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67221.2 Description Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722The UHPI is only available on the C6727 Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67221.2.1 Device Compatibility 1.3 Functional Block Diagram Floating-PointDigital Signal ProcessorsFigure 1-1.C672x DSP Block Diagram TMS320C6727, TMS320C6726, TMS320C6722Application Example Phase-LockedLoop PLLRevision History Mechanical DataFloating-PointDigital Signal Processors 2 Device Overview2.1 Device Characteristics Table 2-1.Characteristics of the C672x ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.2 Enhanced C67x+ CPU Figure 2-1.CPU Data PathsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.3 CPU Interrupt Assignments Table 2-3.CPU Interrupt AssignmentsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.4 Internal Program/Data ROM and RAM Figure 2-2.Program/Data ROM OrganizationTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.5 Program Cache Table 2-4.Program Cache Control Registers2.6 High-PerformanceCrossbar Switch Floating-PointDigital Signal ProcessorsFigure 2-4.Block Diagram of Crossbar Switch TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-6.Bus Bridges RESET VALUE Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 2-5.CFGBRIDGE Register Bit LayoutTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.7 Memory Map Summary Table 2-8.C672x Memory MapFloating-PointDigital Signal Processors 2.8 Boot ModesTMS320C6727, TMS320C6726, TMS320C6722 TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsFigure 2-6.CFGPIN0 Register Bit Layout Submit Documentation FeedbackTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsFigure 2-7.CFGPIN1 Register Bit Layout Device OverviewTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.9 Pin Assignments 2.9.1Pin MapsDevice Overview Submit Documentation FeedbackSPRS268E -MAY2005 -REVISEDJANUARY TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.9.2Terminal Functions Table 2-12.Terminal FunctionsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 2-12.Terminal Functions continued Device OverviewTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 2-12.Terminal Functions continued Submit Documentation FeedbackTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 2-12.Terminal Functions continued AHCLKR0/AHCLKR1TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 2-12.Terminal Functions continued Submit Documentation FeedbackTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.10 Development 2.10.1 Development SupportTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsFigure 2-10.TMS320C672x DSP Device Nomenclature TMS 320 C6727 GDH AFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.10.2.2 Documentation Support Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Device Overview Floating-PointDigital Signal Processors 3 Device Configurations3.1 Device Configuration Registers Table 3-1. Device-LevelConfiguration RegistersFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67223.3 Peripheral Pin Multiplexing Control Device Configurations Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 FIRST PRIORITYFloating-PointDigital Signal Processors 4 Peripheral and Electrical Specifications4.1 Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Electrical Characteristics Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.5.1.1 Signal Transition Levels Floating-PointDigital Signal Processors4.5.1.2 Signal Transition Rates TMS320C6727, TMS320C6726, TMS320C67224.6 Timing Parameter Symbology Floating-PointDigital Signal ProcessorsLetters and symbols and their meanings TMS320C6727, TMS320C6726, TMS320C67224.7 Power Supplies Floating-PointDigital Signal Processors4.7.1Power-SupplySequencing 4.7.2Power-SupplyDecoupling4.8 Reset Floating-PointDigital Signal Processors4.8.1Reset Electrical Data/Timing Table 4-1.Reset Timing RequirementsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors4.9 Dual Data Movement Accelerator dMAX 4.9.1dMAX Device-SpecificInformationFigure 4-4.dMAX Controller Block Diagram Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722The dMAX controller comprises Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Table 4-2.dMAX Peripheral Event Input AssignmentsTable 4-3.dMAX Configuration Registers Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.10 External Interrupts TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors4.11 External Memory Interface EMIF 4.11.1 EMIF Device-SpecificInformationPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-5.C6726/C6722 DSP 16-BitEMIF ExamplePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-6.C6727 DSP 32-BitEMIF ExamplePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.11.2 EMIF Peripheral Registers DescriptionsPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.11.3 EMIF Electrical Data/TimingFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722rising Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-7.Basic SDRAM Write OperationPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-9.Asynchronous Read WE Strobe ModePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-11.Asynchronous Write WE Strobe ModePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-13.EM WAIT Timing RequirementsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors4.12 Universal Host-PortInterface UHPI C6727 Only 4.12.1 UHPI Device-SpecificInformationTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsEM D31 16/UHPI HA15 0 UHPI HCNTL1 0 UHPI HD15 UHPI HD16/HHWIL UHPI HD31 17 UHPI HASBPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 EM D31 16/UHPI HA15 0 UHPI HCNTL1 0 UHPI HD15TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsDSP EM D31 16/UHPI HA15 0 UHPI HCNTL1 UHPI HD15 0 UHPI HD16/HHWIL UHPI HD31Table 4-11.UHPI Configuration Registers Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722RESET Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 4-20.CFGHPIAUMB Register Bit Layout Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.12.3 UHPI Electrical Data/Timing Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Case 1. HPIC or HPIA readPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-21. Non-MultiplexedRead/Write TimingsPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 A.See FigurePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 A.See FigurePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 A.See FigureFloating-PointDigital Signal Processors Figure 4-25.McASP Block DiagramTMS320C6727, TMS320C6726, TMS320C6722 Table 4-17.McASP Configurations on C672x DSP Floating-PointDigital Signal ProcessorsCLOCK PINS DATA PINSPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.13.1 McASP Peripheral Registers DescriptionsPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 0x4400Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 0x4500Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-26.CFGMCASP0 Register Bit LayoutFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722BIT NO Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-28.CFGMCASP2 Register Bit LayoutPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.13.2 McASP Electrical Data/TimingTable 4-23.McASP Switching Characteristics1 Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-29.McASP Input TimingsPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-30.McASP Output TimingsFigure 4-31.Block Diagram of SPI Module Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.14 Serial Peripheral Interface Ports SPI0, SPI1Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Submit Documentation FeedbackTable 4-24.SPIx Configuration Registers Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.14.3 SPI Electrical Data/TimingPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Cycle Time, SPIx CLK, All Slave ModesTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsMAX UNIT MIN MAX UNIT 2PPolarity = 0, Phase = 0, from SPIx CLK falling Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Delay from finalTMS320C6727, TMS320C6726, TMS320C6722 Polarity = 0, Phase = 0, from SPIx CLK falling Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-33.SPI Timings-MasterModePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-34.SPI Timings-SlaveModePeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-35.SPI Timings-MasterMode 4-Pinand 5-PinPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-36.SPI Timings-SlaveMode 4-Pinand 5-PinFigure 4-37.I2C Module Block Diagram Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.15.1 I2C Device-SpecificInformationTable 4-33.I2Cx Configuration Registers Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Table 4-35.I2C Switching Characteristics1 Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C672296Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-38.I2C Receive TimingsFloating-PointDigital Signal Processors Figure 4-40.RTI Timer Block DiagramTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 4-36.RTI Registers Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Peripheral and Electrical Specifications Table 4-36.RTI Registers continuedFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 4-42.C672x Clock Input Options Peripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.17.1 Clock Electrical Data/Timing4.18 Phase-LockedLoop PLL Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.18.1 PLL Device-SpecificInformationFigure 4-44.PLL Power Supply Filter Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Table 4-40.Allowed PLL Operating ConditionsPeripheral and Electrical Specifications Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.18.2 PLL Registers DescriptionsFloating-PointDigital Signal Processors 5 Application ExampleFigure 5-1.TMS320C672x Audio DSP System Diagram TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors 6 Revision HistoryTMS320C6727, TMS320C6726, TMS320C6722 ADDS/CHANGES/DELETESFloating-PointDigital Signal Processors 7 Mechanical Data7.1 Package Thermal Resistance Characteristics Table 7-2.Thermal Characteristics for RFP PackageTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors7.2.1Standoff Height Standoff Height7.2.2PowerPAD PCB Footprint Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 7.3 Packaging InformationPage PACKAGING INFORMATION PACKAGE OPTION ADDENDUMPage Page IMPORTANT NOTICE ProductsApplications