RFD21733 Datasheet, PDF (41/76 Pages) List of Unclassifed Manufacturers – Compliance Approved 2.4 GHz RF Transceiver Modules with Built-In RFDP8 Application Protocol

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7/10/2011 1:40 AM
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RoHS CE • ESTI
RFD21733 • FCC • IC
RFD21743 • FCC
Approved & Certified
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RFDP8
RF Module
RFD21733
RFD21735
RFD21737
RFD21738
RFD21739
RFDP8
RFDANT
RFD21742
RFD21743
RFD21772
RFD21773
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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