SM320F2808-EP Datasheet, PDF (2/118 Pages) Texas Instruments – Digital Signal Processors

SM320F2808-EP, SM320F2806-EP
SM320F2801-EP
Digital Signal Processors
SGLS316A – MARCH 2006 – REVISED FEBRUARY 2007
www.ti.com
Contents
1 Features.............................................................................................................................. 9
2 Introduction ....................................................................................................................... 10
ORDERING INFORMATION.............................................................................................. 10
2.1 Pin Assignments............................................................................................................ 11
2.2 Signal Descriptions......................................................................................................... 14
3 Functional Overview ........................................................................................................... 20
3.1 Memory Map ................................................................................................................ 21
3.2 Brief Descriptions........................................................................................................... 25
3.2.1 C28x CPU ....................................................................................................... 25
3.2.2 Memory Bus (Harvard Bus Architecture) .................................................................... 26
3.2.3 Peripheral Bus .................................................................................................. 26
3.2.4 Real-Time JTAG and Analysis ................................................................................ 26
3.2.5 Flash .............................................................................................................. 26
3.2.6 M0, M1 SARAMs ............................................................................................... 27
3.2.7 L0, L1, H0 SARAMs ............................................................................................ 27
3.2.8 Boot ROM ........................................................................................................ 27
3.2.9 Security .......................................................................................................... 28
3.2.10 Peripheral Interrupt Expansion (PIE) Block .................................................................. 28
3.2.11 External Interrupts (XINT1, XINT2, XNMI) ................................................................... 29
3.2.12 Oscillator and PLL .............................................................................................. 29
3.2.13 Watchdog ........................................................................................................ 29
3.2.14 Peripheral Clocking ............................................................................................. 29
3.2.15 Low-Power Modes .............................................................................................. 29
3.2.16 Peripheral Frames 0, 1, 2 (PFn) .............................................................................. 29
3.2.17 General-Purpose Input/Output (GPIO) Multiplexer ......................................................... 30
3.2.18 32-Bit CPU-Timers (0, 1, 2) ................................................................................... 30
3.2.19 Control Peripherals ............................................................................................. 30
3.2.20 Serial Port Peripherals ......................................................................................... 30
3.3 Register Map................................................................................................................ 31
3.4 Device Emulation Registers............................................................................................... 33
3.5 Interrupts .................................................................................................................... 34
3.5.1 External Interrupts .............................................................................................. 36
3.6 System Control ............................................................................................................. 37
3.6.1 OSC and PLL Block ............................................................................................ 38
3.6.2 Watchdog Block ................................................................................................. 41
3.7 Low-Power Modes Block .................................................................................................. 42
4 Peripherals ........................................................................................................................ 43
4.1 32-Bit CPU-Timers 0/1/2 .................................................................................................. 43
4.2 Enhanced PWM Modules (ePWM1/2/3/4/5/6).......................................................................... 45
4.3 Hi-Resolution PWM (HRPWM) ........................................................................................... 47
4.4 Enhanced CAP Modules (eCAP1/2/3/4) ................................................................................ 48
4.5 Enhanced QEP Modules (eQEP1/2)..................................................................................... 49
4.6 Enhanced Analog-to-Digital Converter (ADC) Module ................................................................ 52
4.7 Enhanced Controller Area Network (eCAN) Modules (eCAN-A and eCAN-B)..................................... 57
4.8 Serial Communications Interface (SCI) Modules (SCI-A, SCI-B) .................................................... 62
4.9 Serial Peripheral Interface (SPI) Modules (SPI-A, SPI-B, SPI-C, SPI-D)........................................... 65
4.10 Inter-Integrated Circuit (I²C)............................................................................................... 69
4.11 GPIO MUX .................................................................................................................. 71
5 Device Support .................................................................................................................. 75
5.1 Device and Development Support Tool Nomenclature................................................................ 75
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Contents
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