Infineon XMC4000 Series User Manual
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Infineon XMC4000 Series User Manual

Ccu8 and capture mode features
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XM C 400 0
XMC4000 Family
CC U 8 an d Ca ptu re Mo de Fea tures
Advanced Signal Measurement
User Guid e
Device Guide
<Revision 1.0>, <2012-30-03>
Preliminary
Mic rocon t rolle r

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Summary of Contents for Infineon XMC4000 Series

  • Page 1 XM C 400 0 XMC4000 Family CC U 8 an d Ca ptu re Mo de Fea tures Advanced Signal Measurement User Guid e Device Guide <Revision 1.0>, <2012-30-03> Preliminary Mic rocon t rolle r...
  • Page 2 Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life.
  • Page 3 Device Guide XMC4000 Advanced Signal Measurement Confidential Revision History Page or Item Subjects (major changes since previous revision) <Revision 1.0>, <2012-30-03> Trademarks of Infineon Technologies AG AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, EconoPACK™, CoolMOS™, CoolSET™, CORECONTROL™, CROSSAVE™, DAVE™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, I²RF™, ISOFACE™, IsoPACK™, MIPAQ™,...

  • Page 4: Table Of Contents

    Device Guide XMC4000 Advanced Signal Measurement Confidential Table of Contents Table of Contents Advanced Signal Measurement ......................6 Slice Timer Setup in Capture Mode ..................... 6 The Capture Algorithm ......................... 7 1.2.1 Disabling the Full-Flags ........................7 Capture by External Events Control ..................... 7 1.3.1 Timer Inputs for Capture ........................
  • Page 5 Device Guide XMC4000 Advanced Signal Measurement Confidential List of Figures List of Figures Figure 1 Timer Slice four Capture Registers ...................... 6 Figure 2 Slice Capture Logic ..........................7 Figure 3 Capture by External Events Control ..................... 8 User Guide <Revision 1.0>, <2012-30-03>...

  • Page 6: Advanced Signal Measurement

    Device Guide XMC4000 Advanced Signal Measurement Confidential Advanced Signal Measurement Advanced Signal Measurement Each CAPCOM8 (CCU80/-81) is a multi purpose timer unit for many use cases. It is designed with repetitive structures with multiple timer slices that have all the same base functionalities. This allows the development of re-usable SW low level drivers.

  • Page 7: The Capture Algorithm

    Device Guide XMC4000 Advanced Signal Measurement Confidential Advanced Signal Measurement Figure 2 Slice Capture Logic The Capture Algorithm Each capture register has a Full-Flag that will be set on a capture-to and cleared on a read-from the register. At a Capture Input Event (Capt1 or Capt0), each register will capture data from the next higher indexed register - IF that higher one is full AND a lower indexed register than that is empty.

  • Page 8: Timer Inputs For Capture

    Device Guide XMC4000 Advanced Signal Measurement Confidential Advanced Signal Measurement Figure 3 Capture by External Events Control 1.3.1 Timer Inputs for Capture There are 3 selectable input lines with configurable source-event-condition profiles available for Capture by external event control functions, extendable in the register CC8yTC and a read access register ECRD too that simplifies administration of capture registers and full-flags, when more than one slice is used in Capture mode.

  • Page 9: Getting Started With Ccu8 And Capture Mode Features

    Device Guide XMC4000 Advanced Signal Measurement Confidential Getting Started with CCU8 and Capture Mode Features Getting Started with CCU8 and Capture Mode Features Ultimate Initialization Sequence Before start and execution of a timer slice SW first time, the CAPCOM8 must have been initialized appropriately according to a specific CAPCOM8 Initialization Sequence: 1.
  • Page 10 Device Guide XMC4000 Advanced Signal Measurement Confidential Getting Started with CCU8 and Capture Mode Features // step 1 and 3 could naturally be merged into one operation sequence, as follows: // Make a MASK OPERATIONS first for bitfield focusing – if not first time – else: CC8yCMC |= CAP01S_FUNCTIONS_AND_EVENTS_NUMBERS_BITFIELD //Init External Capture0&1 // step 2 &...
  • Page 11 . i n f i n e o n . c o m Published by Infineon Technologies AG...

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