TMS320F28335, TMS320F28334, TMS320F28332
TMS320F28235, TMS320F28234, TMS320F28232
www.ti.com
SPRS439M –JUNE 2007–REVISED AUGUST 2012
Contents
1
2
3
TMS320F2833x, TMS320F2823x DSCs .................................................................................. 10
1.1
Features .................................................................................................................... 10
Getting Started ............................................................................................................. 11
1.2
Introduction ...................................................................................................................... 12
2.1
2.2
Pin Assignments ........................................................................................................... 14
Signal Descriptions ........................................................................................................ 23
Functional Overview .......................................................................................................... 33
3.1
Memory Maps .............................................................................................................. 34
Brief Descriptions .......................................................................................................... 41
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
C28x CPU ....................................................................................................... 41
Memory Bus (Harvard Bus Architecture) .................................................................... 41
Peripheral Bus .................................................................................................. 41
Real-Time JTAG and Analysis ................................................................................ 42
External Interface (XINTF) .................................................................................... 42
Flash ............................................................................................................. 42
M0, M1 SARAMs ............................................................................................... 42
L0, L1, L2, L3, L4, L5, L6, L7 SARAMs ..................................................................... 43
Boot ROM ........................................................................................................ 43
3.2.9.1 Peripheral Pins Used by the Bootloader ........................................................ 44
3.2.10 Security .......................................................................................................... 44
3.2.11 Peripheral Interrupt Expansion (PIE) Block ................................................................. 46
3.2.12 External Interrupts (XINT1–XINT7, XNMI) .................................................................. 46
3.2.13 Oscillator and PLL .............................................................................................. 46
3.2.14 Watchdog ........................................................................................................ 46
3.2.15 Peripheral Clocking ............................................................................................. 46
3.2.16 Low-Power Modes .............................................................................................. 46
3.2.17 Peripheral Frames 0, 1, 2, 3 (PFn) ........................................................................... 47
3.2.18 General-Purpose Input/Output (GPIO) Multiplexer ......................................................... 47
3.2.19 32-Bit CPU-Timers (0, 1, 2) ................................................................................... 47
3.2.20 Control Peripherals ............................................................................................. 48
3.2.21 Serial Port Peripherals ......................................................................................... 48
Register Map ............................................................................................................... 49
Device Emulation Registers .............................................................................................. 51
Interrupts .................................................................................................................... 52
3.3
3.4
3.5
3.5.1
External Interrupts .............................................................................................. 56
3.6
System Control ............................................................................................................ 57
3.6.1
OSC and PLL Block ............................................................................................ 58
3.6.1.1 External Reference Oscillator Clock Option .................................................... 59
3.6.1.2 PLL-Based Clock Module ......................................................................... 60
3.6.1.3 Loss of Input Clock ................................................................................ 61
Watchdog Block ................................................................................................. 62
3.6.2
3.7
Low-Power Modes Block ................................................................................................. 63
4
Peripherals ....................................................................................................................... 64
4.1
4.2
4.3
4.4
4.5
4.6
4.7
DMA Overview ............................................................................................................. 64
32-Bit CPU-Timer 0, CPU-Timer 1, CPU-Timer 2 ..................................................................... 66
Enhanced PWM Modules ................................................................................................ 68
High-Resolution PWM (HRPWM) ....................................................................................... 72
Enhanced CAP Modules ................................................................................................. 73
Enhanced QEP Modules ................................................................................................. 75
Analog-to-Digital Converter (ADC) Module ............................................................................ 77
4.7.1
ADC Connections if the ADC Is Not Used .................................................................. 81
2
Contents
Copyright © 2007–2012, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
