Texas Instruments TMS320F2802 - Manual (Page 2)

TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801, TMS320C2802
TMS320C2801, TMS320F28016, TMS320F28015
www.ti.com SPRS230N – OCTOBER 2003 – REVISED MAY 2012
Contents
1 F280x, F2801x, C280x DSPs .................................................................................................. 8
1.1 Features ...................................................................................................................... 8
1.2 Getting Started
..............................................................................................................
9
2 Introduction ...................................................................................................................... 10
2.1 Pin Assignments ........................................................................................................... 13
2.2 Signal Descriptions
........................................................................................................
18
3 Functional Overview .......................................................................................................... 24
3.1 Memory Maps .............................................................................................................. 25
3.2 Brief Descriptions
..........................................................................................................
33
3.2.1 C28x CPU ....................................................................................................... 33
3.2.2 Memory Bus (Harvard Bus Architecture) .................................................................... 33
3.2.3 Peripheral Bus
..................................................................................................
33
3.2.4 Real-Time JTAG and Analysis ................................................................................ 34
3.2.5 Flash ............................................................................................................. 34
3.2.6 ROM
..............................................................................................................
34
3.2.7 M0, M1 SARAMs ............................................................................................... 34
3.2.8 L0, L1, H0 SARAMs ............................................................................................ 35
3.2.9 Boot ROM
.......................................................................................................
35
3.2.10 Security .......................................................................................................... 36
3.2.11 Peripheral Interrupt Expansion (PIE) Block ................................................................. 37
3.2.12 External Interrupts (XINT1, XINT2, XNMI)
..................................................................
37
3.2.13 Oscillator and PLL .............................................................................................. 37
3.2.14 Watchdog ........................................................................................................ 37
3.2.15 Peripheral Clocking
.............................................................................................
37
3.2.16 Low-Power Modes .............................................................................................. 37
3.2.17 Peripheral Frames 0, 1, 2 (PFn) .............................................................................. 38
3.2.18 General-Purpose Input/Output (GPIO) Multiplexer
.........................................................
38
3.2.19 32-Bit CPU-Timers (0, 1, 2) ................................................................................... 38
3.2.20 Control Peripherals ............................................................................................. 38
3.2.21 Serial Port Peripherals
.........................................................................................
39
3.3 Register Map ............................................................................................................... 39
3.4 Device Emulation Registers .............................................................................................. 41
3.5 Interrupts
....................................................................................................................
41
3.5.1 External Interrupts .............................................................................................. 44
3.6 System Control ............................................................................................................ 45
3.6.1 OSC and PLL Block
............................................................................................
46
3.6.1.1 External Reference Oscillator Clock Option .................................................... 47
3.6.1.2 PLL-Based Clock Module ......................................................................... 48
3.6.1.3 Loss of Input Clock
................................................................................
49
3.6.2 Watchdog Block ................................................................................................. 50
3.7 Low-Power Modes Block ................................................................................................. 51
4 Peripherals ....................................................................................................................... 52
4.1 32-Bit CPU-Timers 0/1/2 ................................................................................................. 52
4.2 Enhanced PWM Modules (ePWM1/2/3/4/5/6) ......................................................................... 54
4.3 Hi-Resolution PWM (HRPWM)
..........................................................................................
57
4.4 Enhanced CAP Modules (eCAP1/2/3/4) ............................................................................... 57
4.5 Enhanced QEP Modules (eQEP1/2) .................................................................................... 60
4.6 Enhanced Analog-to-Digital Converter (ADC) Module
...............................................................
62
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
2 Contents Copyright © 2003–2012, Texas Instruments Incorporated