RFD21807 View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
RFD21807 Datasheet PDF : 76 Pages
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7/10/2011 1:40 AM
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RFD21743 • FCC
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KEYFOBs
A receiver in Network Mode will use the UART’s ESN from the packet header to determine if it should accept the
packet. This allows one UART to send the same data to multiple receivers, provided that each receiver has
learned the UART’s ESN.
Format 2:
Byte Bit 7
1
2
3
4
5
Bit 6 Bit 5 Bit 4 Bit 3
Output 3 Output 2 Output 1
ESN Byte 1
ESN Byte 2
ESN Byte 3
ESN Byte 4
Bit 2
Bit 1
Bit 0
To allow individual addressing of receivers in Network Mode, the UART can send a particular receiver’s ESN after
the byte for the logic state. In this case, the receiver will only accept the packet if the ESN in the data portion
matches the receiver’s own ESN.
If the receiver is actively learning ESN’s, it will learn only the ESN from the packet header; the ESN in the data
portion will not be learned.
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