AN652 Code Hopping Decoder Using Secure Learn Author: Steven Dawson Standard Microcontroller and ASSP Division KEY FEATURES • Stand alone decoder • Compatible with Microchip HCS200, HCS300, HCS301, HCS360, and HCS361 encoders • Automatic bit rate detection • Automatic encoder type detection • Four function outputs • Six learnable transmitters • RC Oscillator OVERVIEW This application note fully describes the working of a code hopping decoder implemented on a Microchip PIC16C56 microcontroller.
This decoder uses the secure learn (seed-based) method of learning new transmitters.
This application note describes the various KEELOQ code hopping encoders that can be used with the decoder, the de...

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