MCS3142 datasheet(14/57 Pages) MICROCHIP

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Quick Start

 2014 Microchip Technology Inc.

DS40001746A-page 13

To pair a transmitter to the receiver using Secure learn:

1. Press SW3, the Secure Learn button on the Embedded Security Development

Board to enable Secure Learn mode.

2. If learning the Classic KEELOQ encoder, press both buttons 1 and 2. If learning

the Ultimate KEELOQ encoder, press both buttons 3 and 4. This will cause the

special Seed packet to be sent.

3. The receiver will indicate reception of the Seed transmission.

4. If learning the Ultimate KEELOQ encoder, press either button 3 or 4 to send a

Typical transmission.

5. The receiver will indicate successful pairing.

The kit also includes the SX1239 Receiver PICtail Daughter Board. It houses the

Semtech SX1239 wideband receiver. The target application configured the receiver on

start-up.

2.3

KEELOQ SCREENS

This section describes all of the LCD screens when used with the MCS3142

transmitter.

Only a message from a paired transmitter can be accepted by the receiver. If a packet

is received from an unknown transmitter, the message ‘Not Learned’ will be

displayed on the LCD, as shown in Figure 2-3 and Figure 2-4. The type of transmission

and the transmitter’s serial number are also displayed on the screen.

FIGURE 2-3:

CLASSIC KEELOQ® ENCODER NOT LEARNED

FIGURE 2-4:

ULTIMATE KEELOQ® ENCODER NOT LEARNED

Note: The receiver will always display the encoder serial number associated with

a transmission, regardless of the transmitter’s status with the receiver.

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