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AN118
Rev 1.1 | Page 27 / 31
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press down the push-button on the transmitter which triggers the data sending. In fact, as the “Valid Reception” is by default set
to 2 packets, the minimum time for each normal transmission is about 70 ms.
5.5 Data Pin Reset Code
In many applications, a 4-bit data code, which is stored in the data field of a packet, is sent by the transmitter to reset the data
pins back to their default values on the receiver. The default values of the data pins are all 1. In 1920 and 1527, the number of
bits of this code is fixed at 4. In 2262, the number of bits of this code is identical to the Data Length which is automatically
calculated according to the Sync ID Length.
Please note that, if CMT2150A and CMT2250A work in pairs, the Data Pin Reset Code must be set to all 0 when the Button
Mode of CMT2150A is set to Matirx, Toggle or PWM. Please refer to “AN112 CMT2150A Configuration Guideline” for the details
of the Button Mode selection on CMT2150A.