The Edge Detector component samples the connected signal and produces a pulse when the selected edge occurs.

Transcription

1 Ege Detector 1.0 Features Detects Rising Ege, Falling Ege, or Either Ege General Description The Ege Detector component samples the connecte signal an prouces a pulse when the selecte ege occurs. When to Use an Ege Detector Use the Ege Detector when a circuit nees to respon to a state change on a signal. Input/Output Connections This section escribes the various input an output connections for the Ege Detector. Input The signal connecte to the input is the signal that will be sample for an ege. Input The input ermines how often the input will be sample. Output The output pulses high when an ege is ecte on the input. Cypress Semiconuctor Corporation 198 Champion Court San Jose, CA Document Number: Rev. *B Revise December 12, 2017

2 Ege Detector PSoC Creator Component Datasheet Component Parameters Drag an Ege Detector onto your esign an ouble-click it to open the Configure ialog. The Ege Detector provies the following parameters. EgeType This parameter ermines what type of ege to ect. The value must be Rising Ege, Falling Ege, or Either Ege. The efault is Rising Ege. Functional Description The Ege Detector stores the state of the signal at the last rising ege, an compares it to the current value of the signal. If the state change matches the ege type selecte in the customizer, the terminal will go high until the next rising ege. This means that the resulting pulse from an ege may be shorter than one cycle, but it will never be longer. Figure 1. Rising Ege Schematic Page 2 of 5 Document Number: Rev. *B

3 Ege Detector Figure 1 isplays a logical representation of the implementation for the Rising Ege configuration. Figure 2 provies a sample waveform to illustrate the functionality. Figure 2. Rising Ege Waveform As seen in Figure 2, the output will go high as soon as a rising ege is ecte on the input. The output is cleare on the next rising ege. Figure 3. Falling Ege Schematic Figure 3 isplays a logical representation of the implementation for the Falling Ege configuration. Figure 4 provies a sample waveform to illustrate the functionality. Figure 4. Falling Ege Waveform As seen in Figure 4, the output will go high as soon as a falling ege is ecte on the input. The output is cleare on the next rising ege. Figure 5. Either Ege Schematic Figure 5 isplays a logical representation of the implementation for the Falling Ege configuration. Figure 6 provies a sample waveform to illustrate the functionality. Document Number: Rev. *B Page 3 of 5

4 Ege Detector PSoC Creator Component Datasheet Figure 6. Either Ege Waveform As seen in Figure 6, the output will go high as soon as any ege is ecte on the input. The output is cleare on the next rising ege. Resources Resource Type Configuration Datapath Macrocells Status Control DMA Channels Interrupts Ege Detector 1 MISRA Compliance This section escribes the MISRA-C:2004 compliance an eviations for the component. There are two types of eviations efine: project eviations eviations that are applicable for all PSoC Creator components an specific eviations eviations that are applicable only for this component. This section provies information on component specific eviations. The project eviations are escribe in the MISRA Compliance section of the System Reference Guie along with information on the MISRA compliance verification environment. The Ege Detector component oes not have any C source coe APIs. Component Changes Version 1.0 is the first release of the Ege Detector Component. Page 4 of 5 Document Number: Rev. *B

5 Ege Detector Cypress Semiconuctor Corporation, This ocument is the property of Cypress Semiconuctor Corporation an its subsiiaries, incluing Spansion LLC ( Cypress ). This ocument, incluing any software or firmware inclue or reference in this ocument ( Software ), is owne by Cypress uner the intellectual property laws an treaties of the Unite States an other countries worlwie. Cypress reserves all rights uner such laws an treaties an oes not, except as specifically state in this paragraph, grant any license uner its patents, copyrights, traemarks, or other intellectual property rights. If the Software is not accompanie by a license agreement an you o not otherwise have a written agreement with Cypress governing the use of the Software, then Cypress hereby grants you a personal, non-exclusive, nontransferable license (without the right to sublicense) (1) uner its copyright rights in the Software (a) for Software provie in source coe form, to moify an reprouce the Software solely for use with Cypress harware proucts, only internally within your organization, an (b) to istribute the Software in binary coe form externally to en users (either irectly or inirectly through resellers an istributors), solely for use on Cypress harware prouct units, an (2) uner those claims of Cypress s patents that are infringe by the Software (as provie by Cypress, unmoifie) to make, use, istribute, an import the Software solely for use with Cypress harware proucts. Any other use, reprouction, moification, translation, or compilation of the Software is prohibite. TO THE EXTENT PERMITTED BY APPLICABLE LAW, CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE OR ACCOMPANYING HARDWARE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. To the extent permitte by applicable law, Cypress reserves the right to make changes to this ocument without further notice. Cypress oes not assume any liability arising out of the application or use of any prouct or circuit escribe in this ocument. Any information provie in this ocument, incluing any sample esign information or programming coe, is provie only for reference purposes. It is the responsibility of the user of this ocument to properly esign, program, an test the functionality an safety of any application mae of this information an any resulting prouct. Cypress proucts are not esigne, intene, or authorize for use as critical components in systems esigne or intene for the operation of weapons, weapons systems, nuclear installations, life-support evices or systems, other meical evices or systems (incluing resuscitation equipment an surgical implants), pollution control or hazarous substances management, or other uses where the failure of the evice or system coul cause personal injury, eath, or property amage ( Unintene Uses ). A critical component is any component of a evice or system whose failure to perform can be reasonably expecte to cause the failure of the evice or system, or to affect its safety or effectiveness. Cypress is not liable, in whole or in part, an you shall an hereby o release Cypress from any claim, amage, or other liability arising from or relate to all Unintene Uses of Cypress proucts. You shall inemnify an hol Cypress harmless from an against all claims, costs, amages, an other liabilities, incluing claims for personal injury or eath, arising from or relate to any Unintene Uses of Cypress proucts. Cypress, the Cypress logo, Spansion, the Spansion logo, an combinations thereof, WICED, PSoC, CapSense, EZ-USB, F-RAM, an Traveo are traemarks or registere traemarks of Cypress in the Unite States an other countries. For a more complete list of Cypress traemarks, visit cypress.com. Other names an brans may be claime as property of their respective owners. Document Number: Rev. *B Page 5 of 5