Datasheet

TMS320F28335, TMS320F28334, TMS320F28332
TMS320F28235, TMS320F28234, TMS320F28232
www.ti.com SPRS439M –JUNE 2007–REVISED AUGUST 2012
4.7.2 ADC Registers .................................................................................................. 82
4.7.3 ADC Calibration ................................................................................................. 83
4.8 Multichannel Buffered Serial Port (McBSP) Module .................................................................. 83
4.9 Enhanced Controller Area Network (eCAN) Modules (eCAN-A and eCAN-B) .................................... 86
4.10 Serial Communications Interface (SCI) Modules (SCI-A, SCI-B, SCI-C) .......................................... 91
4.11 Serial Peripheral Interface (SPI) Module (SPI-A) ..................................................................... 95
4.12 Inter-Integrated Circuit (I2C) ............................................................................................. 98
4.13 GPIO MUX ................................................................................................................. 99
4.14 External Interface (XINTF) .............................................................................................. 106
5 Device Support ................................................................................................................ 108
5.1 Device and Development Support Tool Nomenclature ............................................................. 108
5.2 Documentation Support ................................................................................................. 110
5.3 Community Resources .................................................................................................. 115
6 Electrical Specifications ................................................................................................... 116
6.1 Absolute Maximum Ratings ............................................................................................ 116
6.2 Recommended Operating Conditions ................................................................................. 117
6.3 Electrical Characteristics ................................................................................................ 117
6.4 Current Consumption .................................................................................................... 118
6.4.1 Reducing Current Consumption ............................................................................. 120
6.4.2 Current Consumption Graphs ............................................................................... 121
6.4.3 Thermal Design Considerations ............................................................................. 122
6.5 Emulator Connection Without Signal Buffering for the DSP ....................................................... 123
6.6 Timing Parameter Symbology .......................................................................................... 124
6.6.1 General Notes on Timing Parameters ...................................................................... 124
6.6.2 Test Load Circuit .............................................................................................. 124
6.6.3 Device Clock Table ........................................................................................... 125
6.7 Clock Requirements and Characteristics ............................................................................. 126
6.8 Power Sequencing ....................................................................................................... 127
6.8.1 Power Management and Supervisory Circuit Solutions .................................................. 128
6.9 General-Purpose Input/Output (GPIO) ................................................................................ 131
6.9.1 GPIO - Output Timing ........................................................................................ 131
6.9.2 GPIO - Input Timing .......................................................................................... 132
6.9.3 Sampling Window Width for Input Signals ................................................................. 133
6.9.4 Low-Power Mode Wakeup Timing .......................................................................... 134
6.10 Enhanced Control Peripherals ......................................................................................... 139
6.10.1 Enhanced Pulse Width Modulator (ePWM) Timing ....................................................... 139
6.10.2 Trip-Zone Input Timing ....................................................................................... 139
6.10.3 High-Resolution PWM Timing ............................................................................... 140
6.10.4 Enhanced Capture (eCAP) Timing ......................................................................... 140
6.10.5 Enhanced Quadrature Encoder Pulse (eQEP) Timing ................................................... 141
6.10.6 ADC Start-of-Conversion Timing ............................................................................ 142
6.11 External Interrupt Timing ................................................................................................ 142
6.12 I2C Electrical Specification and Timing ............................................................................... 143
6.13 Serial Peripheral Interface (SPI) Timing .............................................................................. 143
6.13.1 Master Mode Timing .......................................................................................... 143
6.13.2 SPI Slave Mode Timing ...................................................................................... 148
6.14 External Interface (XINTF) Timing ..................................................................................... 151
6.14.1 USEREADY = 0 ............................................................................................... 151
6.14.2 Synchronous Mode (USEREADY = 1, READYMODE = 0) ............................................. 152
6.14.3 Asynchronous Mode (USEREADY = 1, READYMODE = 1) ............................................ 153
6.14.4 XINTF Signal Alignment to XCLKOUT ..................................................................... 155
6.14.5 External Interface Read Timing ............................................................................. 156
6.14.6 External Interface Write Timing ............................................................................. 158
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