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TMS320F28235ZHHA Datasheet(PDF) 3 Page - Texas Instruments |
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TMS320F28235ZHHA Datasheet(HTML) 3 Page - Texas Instruments |
3 / 199 page 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 Copyright © 2007–2012, Texas Instruments Incorporated Contents 3 |
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