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33989 Datasheet(PDF) 39 Page - Freescale Semiconductor, Inc |
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33989 Datasheet(HTML) 39 Page - Freescale Semiconductor, Inc |
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39 / 66 page  Analog Integrated Circuit Device Data Freescale Semiconductor 39 33989 TYPICAL APPLICATIONS SUPPLEMENTAL APPLICATION NOTES SUPPLEMENTAL APPLICATION NOTES MC33989 - GENERAL INFORMATION MC33989 device supply on page 39 Voltage Regulator on page 40 Failure on VDD1, Watchdog, Reset, INT Pins on page 41 WAKE-UP TIMINGS - SLEEP MODE LX Wakes up SBC from Sleep Mode on page 42 CAN Wake-Up on page 42 LX with Cyclic Sense on page 43 WAKE UP TIMING: STOP MODE LX Wake-Up on page 43 CAN Wake-Up on page 44 CS Wake-Up on page 44 Overcurrent Wake-Up on page 44 LX with Cyclic Sense on page 45 MC33989 CAN INTERFACE Block Diagram on page 45 CAN Interface Supply on page 46 Main Operation Modes Description on page 46 CAN Driver Operation in Normal Mode on page 46 CAN Mode versus SBC Modes on page 48 How to Test the MC33989 CAN Interface on page 48 CAN LOW POWER MODE AND WAKE-UP Low Power Mode on page 49 Wake-Up on page 49 FAILURE ON V2 SUPPLY, CAN BUS LINES, AND TX PIN V2LOW on page 51 TX Permanent Dominant on page 51 CAN Driver Overtemperature: on page 52 Overcurrent Detection: on page 52 Protection on page 52 Current in Case of Bus Short Conditions on page 52 SOFTWARE ASPECTS Introduction on page 54 How to Enter in Normal Mode After a Power-Up on page 55 How to Change CAN Slew Rate on page 55 How to Set the CAN Interface in Sleep Mode on page 55 How to Control HS1 Output on page 55 How to Configure Wake-Up Before Going in Low Power Mode on page 56 Disable all Wake-Up on page 56 How to Enter in Sleep Mode on page 57 How to Enter in Stop Mode with Watchdog on page 57 How to Enter in Stop Mode without Watchdog on page 57 How to Recognize and Distinguish the Wake-Up Source on page 58 How to Use the Interrupt Function on page 59 Recognition and Recovery on page 59 How to Distinguish Between V2LOW and HS1 Overtemperature on page 59 GENERAL INFORMATION The parameters given in the application section are for information only. Reference the electrical tables beginning on page 4 for actual operating parameters. MC33989 device supply The MC33989 is supplied from the battery line. A serial diode is necessary to protect the device against negative transient pulses and from reverse battery situation. This is illustrated in the device typical application schematic. |
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