Main
1 TMS320C6727, TMS320C6726, TMS320C6722 DSPs
1.1 Features
1.2 Description
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
1.2.1 Device Compatibility
1.3 Functional Block Diagram
Figure 1-1 shows the functional block diagram of the C672x device.
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A. UHPI is available only on the C6727. McASP2 is not available on the C6722.
Figure 1-1. C672x DSP Block Diagram
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
2 Device Overview
2.1 Device Characteristics
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
2.2 Enhanced C67x+ CPU
2.3 CPU Interrupt Assignments
Table 2-2. New Floating-Point Instructions for C67x+ CPU
2.4 Internal Program/Data ROM and RAM
Figure 2-2. Program/Data ROM Organization
2.5 Program Cache
2.6 High-Performance Crossbar Switch
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2.7 Memory Map Summary
2.8 Boot Modes
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2.9 Pin Assignments 2.9.1 Pin Maps
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Figure 2-8. 256-Terminal Ball Grid Array (GDH/ZDH Suffix)Bottom View
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
SPRS268E MAY 2005 REVISED JANUARY 2007
20 Device Overview Submit Documentation Feedback
A. Actual size of Thermal Pad is 5.4 mm 5.4 mm. See Section 7.3 .
Figure 2-9. 144-Pin Low-Profile Quad Flatpack (RFP Suffix)Top View
2.9.2 Terminal Functions
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
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2.10 Development 2.10.1 Development Support
2.10.2 Device Support
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
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Figure 2-10. TMS320C672x DSP Device Nomenclature
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3 Device Configurations
3.1 Device Configuration Registers
3.2 Peripheral Pin Multiplexing Options
3.3 Peripheral Pin Multiplexing Control
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
Table 3-5. Priority of Control of Data Output on Multiplexed Pins
4 Peripheral and Electrical Specifications
4.1 Electrical Specifications
4.3 Recommended Operating Conditions
4.2 Absolute Maximum Ratings
Over Operating Case Temperature Range (Unless Otherwise Noted)
4.4 Electrical Characteristics
Over Operating Case Temperature Range (Unless Otherwise Noted)
4.5 Parameter Information 4.5.1 Parameter Information Device-Specific Information
4.6 Timing Parameter Symbology
4.7 Power Supplies 4.7.1 Power-Supply Sequencing
4.7.2 Power-Supply Decoupling
4.8 Reset 4.8.1 Reset Electrical Data/Timing
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dMAX
Figure 4-4. dMAX Controller Block Diagram
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4.9.2 dMAX Peripheral Registers Description(s)
Table 4-3 is a list of the dMAX registers. Table 4-3. dMAX Configuration Registers
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4.11 External Memory Interface (EMIF) 4.11.1 EMIF Device-Specific Information
Figure 4-5. C6726/C6722 DSP 16-Bit EMIF Example
Figure 4-6. C6727 DSP 32-Bit EMIF Example
4.11.2 EMIF Peripheral Registers Description(s)
4.11.3 EMIF Electrical Data/Timing
Table 4-6. EMIF SDRAM Interface Switching Characteristics
Table 4-7. EMIF Asynchronous Interface Timing Requirements
Table 4-8. EMIF Asynchronous Interface Switching Characteristics
Figure 4-7. Basic SDRAM Write Operation
Figure 4-8. Basic SDRAM Read Operation
Figure 4-9. Asynchronous Read WE Strobe Mode
Figure 4-10. Asynchronous Read Select Strobe Mode
Figure 4-11. Asynchronous Write WE Strobe Mode
Figure 4-12. Asynchronous Write Select Strobe Mode
Figure 4-13. EM_WAIT Timing Requirements
4.12 Universal Host-Port Interface (UHPI) [C6727 Only] 4.12.1 UHPI Device-Specific Information
Figure 4-15. UHPI Multiplexed Host Address/Data Half-Word Mode
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Figure 4-16. UHPI Multiplexed Host Address/Data Fullword Mode
58 Peripheral and Electrical Specifications Submit Documentation Feedback
Figure 4-17. UHPI Non-Multiplexed Host Address/Data Fullword Mode
4.12.2 UHPI Peripheral Registers Description(s)
Table 4-11 is a list of the UHPI registers. Table 4-11. UHPI Configuration Registers
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4.12.3 UHPI Electrical Data/Timing
Table 4-16. UHPI Read and Write Switching Characteristics
Figure 4-21. Non-Multiplexed Read/Write Timings
Figure 4-22. Multiplexed Read Timings Using UHPI_HAS
Figure 4-23. Multiplexed Read Timings With UHPI_HAS Held High
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
Figure 4-24. Multiplexed Write Timings With UHPI_HAS Held High
4.13 Multichannel Audio Serial Ports (McASP0, McASP1, and McASP2)
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4.13.1 McASP Peripheral Registers Description(s)
Table 4-18. McASP Registers Accessed Through Peripheral Configuration Bus (continued)
TMS320C6727, TMS320C6726, TMS320C6722Floating-Point Digital Signal Processors
Table 4-18. McASP Registers Accessed Through Peripheral Configuration Bus (continued)
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4.13.2 McASP Electrical Data/Timing
Table 4-23. McASP Switching Characteristics
Figure 4-29. McASP Input Timings
Figure 4-30. McASP Output Timings
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4.14 Serial Peripheral Interface Ports (SPI0, SPI1) 4.14.1 SPI Device-Specific Information
Figure 4-32. Illustration of SPI Master-to-SPI Slave Connection
4.14.2 SPI Peripheral Registers Description(s)
Table 4-24 is a list of the SPI registers. Table 4-24. SPIx Configuration Registers
4.14.3 SPI Electrical Data/Timing
Table 4-26. General Timing Requirements for SPIx Slave Modes
Table 4-27. Additional
SPI Master Timings, 4-Pin Enable Option
SPI Master Timings, 4-Pin Chip Select Option
Table 4-28. Additional
Table 4-29. Additional
SPI Master Timings, 5-Pin Option
Table 4-30. Additional
SPI Slave Timings, 4-Pin Enable Option
SPI Slave Timings, 4-Pin Chip Select Option
Table 4-31. Additional
Table 4-32. Additional
SPI Slave Timings, 5-Pin Option
Figure 4-33. SPI TimingsMaster Mode
Figure 4-34. SPI TimingsSlave Mode
Figure 4-35. SPI TimingsMaster Mode (4-Pin and 5-Pin)
Figure 4-36. SPI TimingsSlave Mode (4-Pin and 5-Pin)
4.15 Inter-Integrated Circuit Serial Ports (I2C0, I2C1) 4.15.1 I2C Device-Specific Information
Figure 4-37. I2C Module Block Diagram
4.15.2 I2C Peripheral Registers Description(s)
Table 4-33 is a list of the I2C registers. Table 4-33. I2Cx Configuration Registers
4.15.3 I2C Electrical Data/Timing
Table 4-35. I2C Switching Characteristics
Table 4-35. I2C Switching Characteristics (continued)
Figure 4-38. I2C Receive Timings
Figure 4-39. I2C Transmit Timings
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4.16.2 RTI/Digital Watchdog Registers Description(s)
Table 4-36. RTI Registers (continued)
4.17 External Clock Input From Oscillator or CLKIN Pin
4.17.1 Clock Electrical Data/Timing
4.18 Phase-Locked Loop (PLL) 4.18.1 PLL Device-Specific Information
Figure 4-43. PLL Topology
Table 4-40. Allowed PLL Operating Conditions
at the board level through an external filter, asillustrated in Figure 4-44 .
Figure 4-44. PLL Power Supply Filter
4.18.2 PLL Registers Description(s)
5 Application Example
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A. UHPI is only available on the C6727. McASP2 is not available on the C6722.
Figure 5-1. TMS320C672x Audio DSP System Diagram
6 Revision History
7 Mechanical Data
7.1 Package Thermal Resistance Characteristics
Table 7-2. Thermal Characteristics for RFP Package
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PACKAGING INFORMATION
PACKAGE OPTION ADDENDUM
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IMPORTANT NOTICE