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User Module Datasheet: Pulse Width Discriminator Data Sheet PWD V 1.0 (CY8C29/27/24/21xxx, CY8CLED02/04/08/16, CY8CLED0xD, CY8CLED0xG, CYWUSB69xx, CY8C21x45, CY8C22x45, CY8C28x45, CY8CPLC20, CY8CLED16P01, CY8C28xxx) | Cypress Semiconductor

User Module Datasheet: Pulse Width Discriminator Data Sheet PWD V 1.0 (CY8C29/27/24/21xxx, CY8CLED02/04/08/16, CY8CLED0xD, CY8CLED0xG, CYWUSB69xx, CY8C21x45, CY8C22x45, CY8C28x45, CY8CPLC20, CY8CLED16P01, CY8C28xxx)

Last Updated: 
May 22, 2014
Version: 
1.0

Features and Overview

  • Selectable input
  • Selectable output (with row interconnect)
  • Selectable clock, also it can run up to 48 MHz
  • Input signal is active low
  • Output signal is active low
  • Data input can be inverted
  • Data output can be inverted
     
The Pulse Width Discriminator (PWD) user module produces an output pulse and interrupt in response to an input pulse of certain duration. Input pulses less than specified are ignored. The main purpose of PWD is detecting signal preamble in the different communication protocols. Also it can be used as hardware signal debouncer.