Texas-instruments Digital Signal Processor SM320F2812-HT Instrukcja Użytkownika Pobierz pdf (Strona 3)

SM320F2812-HT

www.ti.com

SGUS062B– JUNE 2009– REVISED JUNE 2011

4 Peripherals ....................................................................................................................... 50

4.1 32-Bit CPU-Timers 0/1/2 ................................................................................................. 50

4.2 Event Manager Modules (EVA, EVB) ................................................................................... 53

4.2.1 General-Purpose (GP) Timers ................................................................................ 56

4.2.2 Full-Compare Units ............................................................................................. 56

4.2.3 Programmable Deadband Generator ........................................................................ 56

4.2.4 PWM Waveform Generation .................................................................................. 56

4.2.5 Double Update PWM Mode ................................................................................... 56

4.2.6 PWM Characteristics ........................................................................................... 57

4.2.7 Capture Unit ..................................................................................................... 57

4.2.8 Quadrature-Encoder Pulse (QEP) Circuit ................................................................... 57

4.2.9 External ADC Start-of-Conversion ........................................................................... 57

4.3 Enhanced Analog-to-Digital Converter (ADC) Module ............................................................... 58

4.4 Enhanced Controller Area Network (eCAN) Module .................................................................. 63

4.5 Multichannel Buffered Serial Port (McBSP) Module .................................................................. 67

4.6 Serial Communications Interface (SCI) Module ....................................................................... 71

4.7 Serial Peripheral Interface (SPI) Module ............................................................................... 74

4.8 GPIO MUX ................................................................................................................. 77

5 Development Support ........................................................................................................ 80

5.1 Device and Development Support Tool Nomenclature ............................................................... 80

5.2 Documentation Support ................................................................................................... 81

6 Electrical Specifications ..................................................................................................... 84

6.1 Absolute Maximum Ratings .............................................................................................. 84

6.2 Recommended Operating Conditions .................................................................................. 85

6.3 Electrical Characteristics ................................................................................................. 85

6.4 Current Consumption by Power-Supply Pins Over Recommended Operating Conditions During

Low-Power Modes at 150-MHz SYSCLKOUT ......................................................................... 87

6.5 Current Consumption Graphs ............................................................................................ 88

6.6 Reducing Current Consumption ......................................................................................... 89

6.7 Power Sequencing Requirements ....................................................................................... 89

6.8 Signal Transition Levels .................................................................................................. 91

6.9 Timing Parameter Symbology ........................................................................................... 92

6.10 General Notes on Timing Parameters .................................................................................. 92

6.11 Test Load Circuit .......................................................................................................... 92

6.12 Device Clock Table ........................................................................................................ 93

6.13 Clock Requirements and Characteristics ............................................................................... 93

6.13.1 Input Clock Requirements ..................................................................................... 93

6.13.2 Output Clock Characteristics .................................................................................. 94

6.14 Reset Timing ............................................................................................................... 95

6.15 Low-Power Mode Wakeup Timing ...................................................................................... 99

6.16 Event Manager Interface ................................................................................................ 103

6.16.1 PWM Timing ................................................................................................... 103

6.16.2 Interrupt Timing ................................................................................................ 105

6.17 General-Purpose Input/Output (GPIO) – Output Timing ............................................................ 106

6.18 General-Purpose Input/Output (GPIO) – Input Timing .............................................................. 107

6.19 SPI Master Mode Timing ................................................................................................ 108

6.20 SPI Slave Mode Timing ................................................................................................. 112

1 2 3 4 5 6 7 8 ... 152 153

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