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Texas Instruments warranty TMS320C6727, TMS320C6726, TMS320C6722, 7.Basic SDRAM Write Operation

Models: TMS320C6726 TMS320C6722 TMS320C6727

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TMS320C6727, TMS320C6726, TMS320C6722

Floating-Point Digital Signal Processors

www.ti.com

SPRS268E –MAY 2005 –REVISED JANUARY 2007

BASIC SDRAM	1
BASIC SDRAM
WRITE OPERATION	2 2
EM_CLK
3	4
EM_CS[0]
5	6
EM_WE_DQM[3:0]
7	8
EM_BA[1:0]
7	8

EM_A[12:0]

EM_D[31:0]

1112

EM_RAS

1314

EM_CAS

1516

EM_WE

Figure 4-7. Basic SDRAM Write Operation

BASIC SDRAM	1
BASIC SDRAM
READ OPERATION	2 2
EM_CLK
3	4
EM_CS[0]
5	6

EM_WE_DQM[3:0]

7	8
EM_BA[1:0]
7	8
EM_A[12:0]

	19	2 EM_CLK Delay
17	20
		18

EM_D[31:0]

1112

EM_RAS

1314

EM_CAS

EM_WE

Figure 4-8. Basic SDRAM Read Operation

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Peripheral and Electrical Specifications

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

Contents

1.1 Features Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 1 TMS320C6727, TMS320C6726, TMS320C6722 DSPsFloating-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 TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors1.3 Functional Block Diagram Figure 1-1.C672x DSP Block DiagramMechanical Data Phase-LockedLoop PLLApplication Example Revision HistoryTable 2-1.Characteristics of the C672x Processors 2 Device OverviewFloating-PointDigital Signal Processors 2.1 Device CharacteristicsFigure 2-1.CPU Data Paths Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.2 Enhanced C67x+ CPUTable 2-3.CPU Interrupt Assignments Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.3 CPU Interrupt AssignmentsFigure 2-2.Program/Data ROM Organization Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.4 Internal Program/Data ROM and RAMTable 2-4.Program Cache Control Registers Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.5 Program CacheTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors2.6 High-PerformanceCrossbar Switch Figure 2-4.Block Diagram of Crossbar SwitchFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 2-6.Bus Bridges Figure 2-5.CFGBRIDGE Register Bit Layout Floating-PointDigital Signal ProcessorsRESET VALUE TMS320C6727, TMS320C6726, TMS320C6722Table 2-8.C672x Memory Map Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.7 Memory Map SummaryFloating-PointDigital Signal Processors 2.8 Boot ModesTMS320C6727, TMS320C6726, TMS320C6722 Submit Documentation Feedback Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 2-6.CFGPIN0 Register Bit LayoutDevice Overview Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 2-7.CFGPIN1 Register Bit Layout2.9.1Pin Maps Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.9 Pin AssignmentsDevice Overview Submit Documentation FeedbackSPRS268E -MAY2005 -REVISEDJANUARY Table 2-12.Terminal Functions Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.9.2Terminal FunctionsDevice Overview Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Table 2-12.Terminal Functions continuedSubmit Documentation Feedback Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Table 2-12.Terminal Functions continuedAHCLKR0/AHCLKR1 Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Table 2-12.Terminal Functions continuedSubmit Documentation Feedback Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Table 2-12.Terminal Functions continued2.10.1 Development Support Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 2.10 DevelopmentTMS 320 C6727 GDH A Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 Figure 2-10.TMS320C672x DSP Device NomenclatureFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67222.10.2.2 Documentation Support Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Device Overview Table 3-1. Device-LevelConfiguration Registers 3 Device ConfigurationsFloating-PointDigital Signal Processors 3.1 Device Configuration RegistersFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67223.3 Peripheral Pin Multiplexing Control FIRST PRIORITY Floating-PointDigital Signal ProcessorsDevice Configurations TMS320C6727, TMS320C6726, TMS320C6722TMS320C6727, TMS320C6726, TMS320C6722 4 Peripheral and Electrical SpecificationsFloating-PointDigital Signal Processors 4.1 Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsElectrical Characteristics Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors4.5.1.1 Signal Transition Levels 4.5.1.2 Signal Transition RatesTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors4.6 Timing Parameter Symbology Letters and symbols and their meanings4.7.2Power-SupplyDecoupling Floating-PointDigital Signal Processors4.7 Power Supplies 4.7.1Power-SupplySequencingTable 4-1.Reset Timing Requirements Floating-PointDigital Signal Processors4.8 Reset 4.8.1Reset Electrical Data/Timing4.9.1dMAX Device-SpecificInformation Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.9 Dual Data Movement Accelerator dMAXTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsFigure 4-4.dMAX Controller Block Diagram Peripheral and Electrical SpecificationsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722The dMAX controller comprises Table 4-2.dMAX Peripheral Event Input Assignments Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 4-3.dMAX Configuration Registers Peripheral and Electrical SpecificationsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C67224.10 External Interrupts 4.11.1 EMIF Device-SpecificInformation Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.11 External Memory Interface EMIFFigure 4-5.C6726/C6722 DSP 16-BitEMIF Example Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-6.C6727 DSP 32-BitEMIF Example Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.11.2 EMIF Peripheral Registers Descriptions Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.11.3 EMIF Electrical Data/Timing Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722rising Figure 4-7.Basic SDRAM Write Operation Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-9.Asynchronous Read WE Strobe Mode Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-11.Asynchronous Write WE Strobe Mode Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-13.EM WAIT Timing Requirements Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.12.1 UHPI Device-SpecificInformation Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 4.12 Universal Host-PortInterface UHPI C6727 OnlyUHPI HD16/HHWIL UHPI HD31 17 UHPI HASB Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 EM D31 16/UHPI HA15 0 UHPI HCNTL1 0 UHPI HD15EM D31 16/UHPI HA15 0 UHPI HCNTL1 0 UHPI HD15 Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722UHPI HD15 0 UHPI HD16/HHWIL UHPI HD31 Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 DSP EM D31 16/UHPI HA15 0 UHPI HCNTL1TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 4-11.UHPI Configuration Registers Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsRESET Peripheral and Electrical SpecificationsFloating-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 Case 1. HPIC or HPIA read Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-21. Non-MultiplexedRead/Write Timings Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722A.See Figure Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722A.See Figure Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722A.See Figure Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Figure 4-25.McASP Block DiagramTMS320C6727, TMS320C6726, TMS320C6722 DATA PINS Floating-PointDigital Signal ProcessorsTable 4-17.McASP Configurations on C672x DSP CLOCK PINS4.13.1 McASP Peripheral Registers Descriptions Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67220x4400 Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67220x4500 Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-26.CFGMCASP0 Register Bit Layout Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722BIT NO Figure 4-28.CFGMCASP2 Register Bit Layout Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.13.2 McASP Electrical Data/Timing Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 4-23.McASP Switching Characteristics1 Peripheral and Electrical SpecificationsFigure 4-29.McASP Input Timings Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-30.McASP Output Timings Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.14 Serial Peripheral Interface Ports SPI0, SPI1 Floating-PointDigital Signal ProcessorsFigure 4-31.Block Diagram of SPI Module TMS320C6727, TMS320C6726, TMS320C6722Submit Documentation Feedback Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 4-24.SPIx Configuration Registers Peripheral and Electrical Specifications4.14.3 SPI Electrical Data/Timing Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Cycle Time, SPIx CLK, All Slave Modes Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722MIN MAX UNIT 2P Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 MAX UNITTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsPolarity = 0, Phase = 0, from SPIx CLK falling Peripheral and Electrical SpecificationsFloating-PointDigital Signal Processors Delay from finalTMS320C6727, TMS320C6726, TMS320C6722 TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsPolarity = 0, Phase = 0, from SPIx CLK falling Peripheral and Electrical SpecificationsFigure 4-33.SPI Timings-MasterMode Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-34.SPI Timings-SlaveMode Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-35.SPI Timings-MasterMode 4-Pinand 5-Pin Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Figure 4-36.SPI Timings-SlaveMode 4-Pinand 5-Pin Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.15.1 I2C Device-SpecificInformation Floating-PointDigital Signal ProcessorsFigure 4-37.I2C Module Block Diagram TMS320C6727, TMS320C6726, TMS320C6722TMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 4-33.I2Cx Configuration Registers Peripheral and Electrical SpecificationsTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal ProcessorsTable 4-35.I2C Switching Characteristics1 Peripheral and Electrical SpecificationsFigure 4-38.I2C Receive Timings Floating-PointDigital Signal Processors96Peripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Figure 4-40.RTI Timer Block DiagramTMS320C6727, TMS320C6726, TMS320C6722 Floating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 4-36.RTI Registers Table 4-36.RTI Registers continued TMS320C6727, TMS320C6726, TMS320C6722Floating-PointDigital Signal Processors Peripheral and Electrical SpecificationsFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Figure 4-42.C672x Clock Input Options 4.17.1 Clock Electrical Data/Timing Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C67224.18.1 PLL Device-SpecificInformation Floating-PointDigital Signal Processors4.18 Phase-LockedLoop PLL TMS320C6727, TMS320C6726, TMS320C6722Table 4-40.Allowed PLL Operating Conditions Floating-PointDigital Signal ProcessorsFigure 4-44.PLL Power Supply Filter TMS320C6727, TMS320C6726, TMS320C67224.18.2 PLL Registers Descriptions Floating-PointDigital Signal ProcessorsPeripheral and Electrical Specifications TMS320C6727, TMS320C6726, TMS320C6722TMS320C6727, TMS320C6726, TMS320C6722 5 Application ExampleFloating-PointDigital Signal Processors Figure 5-1.TMS320C672x Audio DSP System DiagramADDS/CHANGES/DELETES 6 Revision HistoryFloating-PointDigital Signal Processors TMS320C6727, TMS320C6726, TMS320C6722Table 7-2.Thermal Characteristics for RFP Package 7 Mechanical DataFloating-PointDigital Signal Processors 7.1 Package Thermal Resistance CharacteristicsStandoff Height Floating-PointDigital Signal ProcessorsTMS320C6727, TMS320C6726, TMS320C6722 7.2.1Standoff Height7.3 Packaging Information Floating-PointDigital Signal Processors7.2.2PowerPAD PCB Footprint TMS320C6727, TMS320C6726, TMS320C6722Page PACKAGING INFORMATION PACKAGE OPTION ADDENDUMPage Page IMPORTANT NOTICE ProductsApplications