TMS320F2808

TMS320F2809, TMS320F2808, TMS320F2806

TMS320F2802, TMS320F2801

TMS320C2802, TMS320C2801, and TMS320F2801x DSPs

Data Manual

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Literature Number: SPRS230K

1 F280x, F2801x, C280x DSPs .................................................................................................. 9

1.1 Features ....................................................................................................................... 9

1.2 Getting Started .............................................................................................................. 10

2 Introduction ....................................................................................................................... 11

2.1 Pin Assignments ............................................................................................................ 13

2.2 Signal Descriptions ......................................................................................................... 19

3 Functional Overview ........................................................................................................... 25

3.1 Memory Maps ............................................................................................................... 26

3.2 Brief Descriptions ........................................................................................................... 34

3.2.1 C28x CPU ....................................................................................................... 34

3.2.8 L0, L1, H0 SARAMs ............................................................................................ 36

3.2.9 Boot ROM ........................................................................................................ 36

3.2.10 Security .......................................................................................................... 37

3.2.11 Peripheral Interrupt Expansion (PIE) Block .................................................................. 38

3.2.12 External Interrupts (XINT1, XINT2, XNMI) ................................................................... 38

3.2.13 Oscillator and PLL .............................................................................................. 38

3.2.14 Watchdog ........................................................................................................ 38

3.2.15 Peripheral Clocking ............................................................................................. 38

3.2.16 Low-Power Modes .............................................................................................. 38

3.2.17 Peripheral Frames 0, 1, 2 (PFn) .............................................................................. 39

3.5 Interrupts .................................................................................................................... 42

3.5.1 External Interrupts .............................................................................................. 45

3.6 System Control ............................................................................................................. 46

3.6.1 OSC and PLL Block ............................................................................................ 47

3.6.1.1 External Reference Oscillator Clock Option ....................................................... 48

3.6.1.2 PLL-Based Clock Module ............................................................................ 49

3.6.1.3 Loss of Input Clock ................................................................................... 50

3.6.2 Watchdog Block ................................................................................................. 51

3.7 Low-Power Modes Block .................................................................................................. 52

4 Peripherals ........................................................................................................................ 53

4.6.1 ADC Connections if the ADC Is Not Used ................................................................... 65

4.6.2 ADC Registers ................................................................................................... 66

4.7 Enhanced Controller Area Network (eCAN) Modules (eCAN-A and eCAN-B) ..................................... 67

4.8 Serial Communications Interface (SCI) Modules (SCI-A, SCI-B) .................................................... 72

4.9 Serial Peripheral Interface (SPI) Modules (SPI-A, SPI-B, SPI-C, SPI-D) ........................................... 75

4.10 Inter-Integrated Circuit (I2C) .............................................................................................. 79

4.11 GPIO MUX .................................................................................................................. 81

5 Device Support .................................................................................................................. 85

5.1 Device and Development Support Tool Nomenclature ................................................................ 85

6.4.1 Reducing Current Consumption .............................................................................. 97

6.4.2 Current Consumption Graphs .................................................................................. 98

6.5 Emulator Connection Without Signal Buffering for the DSP ........................................................ 100

6.6 Timing Parameter Symbology ........................................................................................... 101

6.6.1 General Notes on Timing Parameters ....................................................................... 101

6.6.2 Test Load Circuit .............................................................................................. 102

6.6.3 Device Clock Table ........................................................................................... 102

6.7 Clock Requirements and Characteristics ............................................................................. 104

6.8 Power Sequencing ........................................................................................................ 105

6.8.1 Power Management and Supervisory Circuit Solutions ................................................... 105

6.10.1 Enhanced Pulse Width Modulator (ePWM) Timing ........................................................ 114

6.10.2 Trip-Zone Input Timing ........................................................................................ 114

6.10.3 External Interrupt Timing ...................................................................................... 116

6.10.4 I2C Electrical Specification and Timing ..................................................................... 117

6.10.5 Serial Peripheral Interface (SPI) Master Mode Timing .................................................... 117

6.10.6 SPI Slave Mode Timing ....................................................................................... 121

6.10.7 On-Chip Analog-to-Digital Converter ........................................................................ 124

6.10.7.1 ADC Power-Up Control Bit Timing .............................................................. 125

6.10.7.2 Definitions ........................................................................................... 126

6.10.7.3 Sequential Sampling Mode (Single-Channel) (SMODE = 0) ................................. 127

8 Revision History ............................................................................................................... 133

9 Mechanical Data ............................................................................................................... 135

2-1 TMS320F2809, TMS320F2808 100-Pin PZ LQFP (Top View) ............................................................. 14

2-2 TMS320F2806 100-Pin PZ LQFP (Top View) ................................................................................. 15

2-3 TMS320F2802, TMS320F2801, TMS320C2802, TMS320C2801 100-Pin PZ LQFP (Top View) ...................... 16

2-4 TMS320F2801x 100-Pin PZ LQFP (Top View) ............................................................................... 17

100-Ball GGM and ZGM MicroStar BGA™ (Bottom View) .................................................................. 18

3-1 Functional Block Diagram ........................................................................................................ 25

3-2 F2809 Memory Map .............................................................................................................. 26

3-5 F2802, C2802 Memory Map ..................................................................................................... 29

3-10 OSC and PLL Block Diagram ................................................................................................... 47

3-11 Using a 3.3-V External Oscillator ............................................................................................... 48

3-12 Using a 1.8-V External Oscillator ............................................................................................... 48

3-13 Using the Internal Oscillator ..................................................................................................... 48

3-14 Watchdog Module ................................................................................................................. 51

4-1 CPU-Timers ........................................................................................................................ 53

4-2 CPU-Timer Interrupt Signals and Output Signal .............................................................................. 54

4-3 Multiple PWM Modules in a 280x System ..................................................................................... 55

4-4 ePWM Sub-Modules Showing Critical Internal Signal Interconnections ................................................... 57

4-5 eCAP Functional Block Diagram ................................................................................................ 58

4-12 eCAN-B Memory Map ............................................................................................................ 70

4-13 Serial Communications Interface (SCI) Module Block Diagram ............................................................ 74

4-14 SPI Module Block Diagram (Slave Mode) ..................................................................................... 78

4-15 I2C Peripheral Module Interfaces ............................................................................................... 80

4-16 GPIO MUX Block Diagram ....................................................................................................... 81

4-17 Qualification Using Sampling Window .......................................................................................... 84

5-1 Example of TMS320x280x/2801x Device Nomenclature .................................................................... 86

6-1 Typical Operational Current Versus Frequency (F2808) .................................................................... 98

6-2 Typical Operational Power Versus Frequency (F2808) ...................................................................... 98

6-3 Typical Operational Current Versus Frequency (C280x) .................................................................... 99

6-4 Typical Operational Power Versus Frequency (C280x) ...................................................................... 99