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Texas Instruments warranty TMS320C6727, TMS320C6726, TMS320C6722, 38.I2C Receive Timings

Models: TMS320C6726 TMS320C6722 TMS320C6727

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Figure 4-38. I2C Receive Timings

TMS320C6727, TMS320C6726, TMS320C6722

Floating-Point Digital Signal Processors

www.ti.com

SPRS268E –MAY 2005 –REVISED JANUARY 2007

Table 4-35. I2C Switching Characteristics (continued)

NO.

19tw(SCLL)

20tw(SCLH)

21tsu(SDAV-SCLH)

22th(SCLL-SDAV)

23tw(SDAH)

28tsu(SCLH-SDAH)

29Cb

PARAMETER

Pulse duration, I2Cx_SCL low

Pulse duration, I2Cx_SCL high

Setup time, I2Cx_SDA valid before I2Cx_SCL high

Hold time, I2Cx_SDA valid after I2Cx_SCL low

Pulse duration, I2Cx_SDA high

Setup time, I2Cx_SCL high before I2Cx_SDA high

Capacitive load on each bus line from this device

Standard Mode

Fast Mode

Standard Mode

Fast Mode

Standard Mode

Fast Mode

Standard Mode

Fast Mode

Standard Mode

Fast Mode

Standard Mode

Fast Mode

Standard Mode

Fast Mode

	MIN	MAX UNIT
	4.7	μs
	1.3	μs
	1.3
	4	μs
	0.6	μs
	0.6
	250	ns
	100	ns
	100
	0	μs
	0	μs
	0	0.9
	4.7	μs
	1.3	μs
	1.3
	4	μs
	0.6	μs
	0.6
		10
		pF
		10

11

I2Cx_SDA

8

4 10

I2Cx_SCL

1

7

3

Stop Start

6

5

12

Repeated

Start

3

2

9

14

13

Stop

Figure 4-38. I2C Receive Timings

26

I2Cx_SDA

23

19

25

I2Cx_SCL

16

22

18

Stop Start

21

20

27

Repeated

Start

24

28

18

17

Stop

Figure 4-39. I2C Transmit Timings

96Peripheral and Electrical Specifications

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

Contents

Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67221 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 Floating-PointDigital Signal Processors 1.3 Functional Block DiagramFigure 1-1.C672x DSP Block Diagram TMS320C6727, TMS320C6726, TMS320C6722Phase-LockedLoop PLL Application ExampleRevision History Mechanical Data2 Device Overview Floating-PointDigital Signal Processors2.1 Device Characteristics Table 2-1.Characteristics of the C672x ProcessorsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.2 Enhanced C67x+ CPU Figure 2-1.CPU Data PathsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.3 CPU Interrupt Assignments Table 2-3.CPU Interrupt AssignmentsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.4 Internal Program/Data ROM and RAM Figure 2-2.Program/Data ROM OrganizationFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.5 Program Cache Table 2-4.Program Cache Control RegistersFloating-PointDigital Signal Processors 2.6 High-PerformanceCrossbar SwitchFigure 2-4.Block Diagram of Crossbar Switch TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-6.Bus Bridges Floating-PointDigital Signal Processors RESET VALUETMS320C6727, TMS320C6726, TMS320C6722 Figure 2-5.CFGBRIDGE Register Bit LayoutFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.7 Memory Map Summary Table 2-8.C672x Memory MapFloating-PointDigital Signal Processors 2.8 Boot ModesTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 2-6.CFGPIN0 Register Bit Layout Submit Documentation FeedbackFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 2-7.CFGPIN1 Register Bit Layout Device OverviewFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.9 Pin Assignments 2.9.1Pin MapsDevice Overview Submit Documentation FeedbackSPRS268E -MAY2005 -REVISEDJANUARY Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.9.2Terminal Functions Table 2-12.Terminal FunctionsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-12.Terminal Functions continued Device OverviewFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-12.Terminal Functions continued Submit Documentation FeedbackFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-12.Terminal Functions continued AHCLKR0/AHCLKR1Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-12.Terminal Functions continued Submit Documentation FeedbackFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.10 Development 2.10.1 Development SupportFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 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 3 Device Configurations Floating-PointDigital Signal Processors3.1 Device Configuration Registers Table 3-1. Device-LevelConfiguration RegistersFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67223.3 Peripheral Pin Multiplexing Control Floating-PointDigital Signal Processors Device ConfigurationsTMS320C6727, TMS320C6726, TMS320C6722 FIRST PRIORITY4 Peripheral and Electrical Specifications Floating-PointDigital Signal Processors4.1 Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Electrical CharacteristicsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors 4.5.1.1 Signal Transition Levels4.5.1.2 Signal Transition Rates TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors 4.6 Timing Parameter SymbologyLetters and symbols and their meanings TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors 4.7 Power Supplies4.7.1Power-SupplySequencing 4.7.2Power-SupplyDecouplingFloating-PointDigital Signal Processors 4.8 Reset4.8.1Reset Electrical Data/Timing Table 4-1.Reset Timing RequirementsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.9 Dual Data Movement Accelerator dMAX 4.9.1dMAX Device-SpecificInformationFloating-PointDigital Signal Processors Figure 4-4.dMAX Controller Block DiagramPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722The dMAX controller comprises Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Table 4-2.dMAX Peripheral Event Input AssignmentsFloating-PointDigital Signal Processors Table 4-3.dMAX Configuration RegistersPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.10 External Interrupts Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.11 External Memory Interface EMIF 4.11.1 EMIF Device-SpecificInformationFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-5.C6726/C6722 DSP 16-BitEMIF ExampleFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-6.C6727 DSP 32-BitEMIF ExampleFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.11.2 EMIF Peripheral Registers DescriptionsFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.11.3 EMIF Electrical Data/TimingFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722rising Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-7.Basic SDRAM Write OperationFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-9.Asynchronous Read WE Strobe ModeFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-11.Asynchronous Write WE Strobe ModeFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-13.EM WAIT Timing RequirementsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.12 Universal Host-PortInterface UHPI C6727 Only 4.12.1 UHPI Device-SpecificInformationFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722EM D31 16/UHPI HA15 0 UHPI HCNTL1 0 UHPI HD15 UHPI HD16/HHWIL UHPI HD31 17 UHPI HASBFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 EM D31 16/UHPI HA15 0 UHPI HCNTL1 0 UHPI HD15Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722DSP EM D31 16/UHPI HA15 0 UHPI HCNTL1 UHPI HD15 0 UHPI HD16/HHWIL UHPI HD31Floating-PointDigital Signal Processors Table 4-11.UHPI Configuration RegistersPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors RESETPeripheral 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 Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Case 1. HPIC or HPIA readFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-21. Non-MultiplexedRead/Write TimingsFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 A.See FigureFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 A.See FigureFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 A.See FigureFloating-PointDigital Signal Processors Figure 4-25.McASP Block DiagramTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors Table 4-17.McASP Configurations on C672x DSPCLOCK PINS DATA PINSFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.13.1 McASP Peripheral Registers DescriptionsFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 0x4400Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 0x4500Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-26.CFGMCASP0 Register Bit LayoutFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722BIT NO Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-28.CFGMCASP2 Register Bit LayoutFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.13.2 McASP Electrical Data/TimingFloating-PointDigital Signal Processors Table 4-23.McASP Switching Characteristics1Peripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-29.McASP Input TimingsFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-30.McASP Output TimingsFloating-PointDigital Signal Processors Figure 4-31.Block Diagram of SPI ModuleTMS320C6727, TMS320C6726, TMS320C6722 4.14 Serial Peripheral Interface Ports SPI0, SPI1Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Submit Documentation FeedbackFloating-PointDigital Signal Processors Table 4-24.SPIx Configuration RegistersPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.14.3 SPI Electrical Data/TimingFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Cycle Time, SPIx CLK, All Slave ModesFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722MAX UNIT MIN MAX UNIT 2PFloating-PointDigital Signal Processors Polarity = 0, Phase = 0, from SPIx CLK fallingPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Delay from finalTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors Polarity = 0, Phase = 0, from SPIx CLK fallingPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-33.SPI Timings-MasterModeFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-34.SPI Timings-SlaveModeFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-35.SPI Timings-MasterMode 4-Pinand 5-PinFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Figure 4-36.SPI Timings-SlaveMode 4-Pinand 5-PinFloating-PointDigital Signal Processors Figure 4-37.I2C Module Block DiagramTMS320C6727, TMS320C6726, TMS320C6722 4.15.1 I2C Device-SpecificInformationFloating-PointDigital Signal Processors Table 4-33.I2Cx Configuration RegistersPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Table 4-35.I2C Switching Characteristics1Peripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors 96Peripheral and Electrical SpecificationsTMS320C6727, 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 TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications Table 4-36.RTI Registers continuedFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 4-42.C672x Clock Input Options Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.17.1 Clock Electrical Data/TimingFloating-PointDigital Signal Processors 4.18 Phase-LockedLoop PLLTMS320C6727, TMS320C6726, TMS320C6722 4.18.1 PLL Device-SpecificInformationFloating-PointDigital Signal Processors Figure 4-44.PLL Power Supply FilterTMS320C6727, TMS320C6726, TMS320C6722 Table 4-40.Allowed PLL Operating ConditionsFloating-PointDigital Signal Processors Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 4.18.2 PLL Registers Descriptions5 Application Example Floating-PointDigital Signal ProcessorsFigure 5-1.TMS320C672x Audio DSP System Diagram TMS320C6727, TMS320C6726, TMS320C67226 Revision History Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 ADDS/CHANGES/DELETES7 Mechanical Data Floating-PointDigital Signal Processors7.1 Package Thermal Resistance Characteristics Table 7-2.Thermal Characteristics for RFP PackageFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67227.2.1Standoff Height Standoff HeightFloating-PointDigital Signal Processors 7.2.2PowerPAD PCB FootprintTMS320C6727, TMS320C6726, TMS320C6722 7.3 Packaging InformationPage PACKAGE OPTION ADDENDUM PACKAGING INFORMATIONPage Page IMPORTANT NOTICE ProductsApplications