RPC-UHF RADIOMETRIX [Radiometrix Ltd], RPC-UHF Datasheet - Page 9

• Manufacturer Part Number: RPC-UHF
• Description: Radio Packet Controller
• Manufacturer: RADIOMETRIX [Radiometrix Ltd]

Data packets are sent to / received from remote RPC’s. They begin with a control byte with bit 7
cleared and may be of variable length and contain up to 27 bytes of user determined data.
The remainder of the bytes in the data packet are of the users determination.
The packet would usually be made up of a number of fields consisting of some
but not necessarily all of the following :-
2.2.3 RPC M
The RPC’s EEPROM memory can be accessed by setting bit 7 in the control byte. Bit 6 (R/W flag)
defines a memory read or write. The bits left define the address.
Radiometrix Ltd, RPC
figure 9: Control byte for data packet
figure 10: RPC memory access
ENDING AND RECEIVING
Source address / ID
Destination address / ID
System ID
Packet count
Encryption / Scrambler control
Additional error check codes ( The RPC performs it's own error checks)
Routing information ( for repeaters)
Link control codes (connect/disconnect/ACK/NAK etc.)
Data field
EMORY
A
CCESS
ATA
ACKETS
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