Clock Electrical Data/Timing | Texas Instruments TMS320C6726

TMS320C6727, TMS320C6726, TMS320C6722

Floating-Point Digital Signal Processors

www.ti.com

SPRS268E –MAY 2005 –REVISED JANUARY 2007

4.17.1 Clock Electrical Data/Timing

Table 4-39assumes testing over recommended operating conditions.

Table 4-39. CLKIN Timing Requirements

NO.			MIN	MAX	UNIT
1	fosc	Oscillator frequency range (OSCIN/OSCOUT)	12	25	MHz
2	tc(CLKIN)	Cycle time, external clock driven on CLKIN	20		ns
3	tw(CLKINH)	Pulse width, CLKIN high	0.4tc(CLKIN)		ns
4	tw(CLKINL)	Pulse width, CLKIN low	0.4tc(CLKIN)		ns
5	tt(CLKIN)	Transition time, CLKIN		5	ns
6	fPLL	Frequency range of PLL input	12	50	MHz

Submit Documentation Feedback

Peripheral and Electrical Specifications

101

Image 101

Texas Instruments TMS320C6726, TMS320C6727, TMS320C6722 warranty Clock Electrical Data/Timing, Clkin Timing Requirements

Contents

TMS320C6727, TMS320C6726, TMS320C6722 DSPs Features Description Submit Documentation Feedback Device Compatibility Functional Block Diagram Package Thermal Resistance Characteristics Contents Characteristics of the C672x Processors Device CharacteristicsHardware Features C6726 CPU Data Paths Enhanced C67x+ CPU New Floating-Point Instructions for C67x+ CPU CPU Interrupt AssignmentsCPU Interrupt Assignments Instruction FLOATING-POINT Improves Operation Byte Bank Internal Program/Data ROM and RAM Program Cache Cache ModeProgram Cache Control Registers Register Name Byte Address Description Block Diagram of Crossbar Switch High-Performance Crossbar Switch Label Bridge Description Master Clock Target Clock Bus Bridges Csprst BIT no Name Reset Value Read Write Description Ffff Memory Map SummaryC672x Memory Map Required Boot Pin Settings at Device Reset Boot ModesBoot Mode Uhpihcs SPI0SIMO SPI0CLK PINCAP7 BIT no Name Description PINCAP15 Pin Maps Pin Assignments Pin Low-Profile Quad Flatpack RFP Suffix-Top View Terminal Functions Signal Name RFP GDH12. Terminal Functions ZDH IO/I IPD Description ZDH ACLKR0 AHCLKR0/AHCLKR1AFSR0 AHCLKX0/AHCLKX2 Power Pins 144-Pin RFP Package Power Pins 256-Terminal GDH/ZDH Package Device Support DevelopmentDevelopment Support Prefix Device Speed Range TMS 320 C6727 GDH a 250Device Family Package Type ‡ § Documentation Support C672x devices are documented in the tools v6.0 documentation Device-Level Configuration Registers Device Configuration RegistersOptions for Configuring SPI0, I2C0, and I2C1 Peripheral Pin Multiplexing Options Options for Configuring Emif and Uhpi C6727 Only Options for Configuring SPI1, McASP0, and McASP1 Data PinsConfiguration Option Peripheral Peripheral Pin Multiplexing Control PIN First Priority Second Priority Third Priority Priority of Control of Data Output on Multiplexed Pins Absolute Maximum Ratings1 Electrical SpecificationsRecommended Operating Conditions1 Unit Dvdd Parameter Test Conditions MIN TYP MAX UnitII, IOZ GDH, CV Tester Pin Electronics Parameter InformationParameter Information Device-Specific Information Timing Parameter Symbology Power-Supply Decoupling Power SuppliesPower-Supply Sequencing Reset Electrical Data/Timing ResetReset Timing Requirements MIN MAX Unit DMAX Device-Specific Information Dual Data Movement Accelerator dMAX RAM DMAXREQ REQ RAM Submit Documentation Feedback Event Number Event Acronym Event Description DMAX Peripheral Event Input Assignments Byte Address Register Name Description DMAX Configuration RegistersDMAX Peripheral Registers Descriptions External Interrupts Emif Device-Specific Information External Memory Interface Emif DSP Emif ResetEmras Emwe Emclk EmcasEMWEDQM0 EMWEDQM1 Emif Registers Emif Peripheral Registers Descriptions Emif Electrical Data/Timing Emif Sdram Interface Switching CharacteristicsEmif Sdram Interface Timing Requirements Parameter MIN MAX Unit Emif Asynchronous Interface Timing Requirements1 Emif Asynchronous Interface Switching Characteristics1 Basic Sdram Read Operation Basic Sdram Write Operation EmclkEmras Emcas Emwe 10. Asynchronous Read Select Strobe Mode Asynchronous Read WE Strobe Mode 12. Asynchronous Write Select Strobe Mode 11. Asynchronous Write WE Strobe Mode 13. Emwait Timing Requirements Universal Host-Port Interface Uhpi C6727 Only 10. HPI Access Types Selected by UHPIHCNTL10Uhpi Device-Specific Information Uhpi Major Modes on C672x UHPIHD16/HHWIL DSPUhpihasb Uhpihrw UHPIHDS2G UHPIHDS1G Uhpihcs Uhpihrdy AMUTE2/HINT External Host MCU AxyC D150 D16 D3117 BE30D 16. Uhpi Multiplexed Host Address/Data Fullword Mode External Host MCU A172 AxyA D150 D16 D3117 BE30C 17. Uhpi Non-Multiplexed Host Address/Data Fullword Mode Device-Level Configuration Registers Controlling Uhpi 11. Uhpi Configuration RegistersUhpi Peripheral Registers Descriptions Uhpi Internal Registers Bytead Full Nmux Pagem ENA BIT no Name Reset Read Description Value Write 318 Reserved BIT no Name Reset Read Value WriteHpiamsb Description Hpiaumb Description 15. Uhpi Read and Write Timing Requirements1 Uhpi Electrical Data/TimingUniversal Host-Port Interface Uhpi Read and Write Timing 16. Uhpi Read and Write Switching Characteristics1 Valid Read data Write data UHPIHDSxRead Write UHPIHA150 Uhpihcs Uhpihas UHPIHCNTL10 Uhpihrw Uhpihhwil Hstrobe a 22. Multiplexed Read Timings Using Uhpihas 23. Multiplexed Read Timings With Uhpihas Held High 24. Multiplexed Write Timings With Uhpihas Held High GIO Multichannel Audio Serial Ports McASP0, McASP1, and McASP2 DIT Clock Pins Data Pins Comments 17. McASP Configurations on C672x DSP McASP Peripheral Registers Descriptions Device-Level Configuration Registers Controlling McASPRegister Byte Description Name Address McASP Internal Registers Xevtctl XclkchkDITCSRA0 DITCSRA1 0x4500 020C XBUF3 Transmit buffer register for serializer AMUTEIN0 Description AMUTEIN0313 Reserved AMUTEIN1 Description AMUTEIN1 AMUTEIN2 AMUTEIN2 22. McASP Timing Requirements1 McASP Electrical Data/TimingMultichannel Audio Serial Port McASP Timing 23. McASP Switching Characteristics1 ACLKR/X Clkrp = Clkxp = 0A ACLKR/X Clkrp = Clkxp = 1B 29. McASP Input Timings ACLKR/X Clkrp = Clkxp = 1A ACLKR/X Clkrp = Clkxp = 0B 30. McASP Output Timings SPI Device-Specific Information Serial Peripheral Interface Ports SPI0, SPI1 Slave SPI SPIxSCS SPIxENA SPIxCLK SPIxSOMI SPIxSIMOMaster SPI SPI0 SPI1 Register Name Description Byte Address 24. SPIx Configuration RegistersSPI Peripheral Registers Descriptions 25. General Timing Requirements for SPIx Master Modes1 SPI Electrical Data/TimingSerial Peripheral Interface SPI Timing 26. General Timing Requirements for SPIx Slave Modes1 MIN MAX Unit 2P 27. Additional1 SPI Master Timings, 4-Pin Enable Option2 29. Additional1 SPI Master Timings, 5-Pin Option2 31. Additional1 SPI Slave Timings, 4-Pin Chip Select Option2 30. Additional1 SPI Slave Timings, 4-Pin Enable Option2 32. Additional1 SPI Slave Timings, 5-Pin Option2 33. SPI Timings-Master Mode 34. SPI Timings-Slave Mode 35. SPI Timings-Master Mode 4-Pin and 5-Pin 36. SPI Timings-Slave Mode 4-Pin and 5-Pin 15.1 I2C Device-Specific Information Inter-Integrated Circuit Serial Ports I2C0, I2C1 Register Name Description Byte Address 33. I2Cx Configuration Registers15.2 I2C Peripheral Registers Descriptions 15.3 I2C Electrical Data/Timing 35. I2C Switching Characteristics1Inter-Integrated Circuit I2C Timing 34. I2C Input Timing Requirements I2CxSDA I2CxSCL Stop Start Repeated 35. I2C Switching CharacteristicsParameter Watchdog Key Register Bit Key RTI Interrupt Real-Time Interrupt RTI Timer With Digital Watchdog16.1 RTI/Digital Watchdog Device-Specific Information 16.2 RTI/Digital Watchdog Registers Descriptions Device-Level Configuration Registers Controlling RTI36. RTI Registers RTI Internal Registers Rtidwdctrl RtiintflagRtidwdprld Rtiwdstatus 38. Recommended On-Chip Oscillator Components External Clock Input From Oscillator or Clkin Pin 39. Clkin Timing Requirements Clock Electrical Data/Timing PLL Device-Specific Information Phase-Locked Loop PLL 40. Allowed PLL Operating Conditions Parameter Default Value Allowed Setting or RangeBoard EMI 41. PLL Controller Registers PLL Registers Descriptions ADC, DAC, DSD CODEC, DIRSpio RTI ADDS/CHANGES/DELETES Thermal Characteristics for RFP Package Package Thermal Resistance CharacteristicsThermal Characteristics for GDH/ZDH Package Standoff Height Standoff Height Packaging Information PowerPAD PCB FootprintPage Qty Orderable Device Status Package Pins Package Eco PlanMSL Peak Temp Page Page Important Notice