RPC-UHF RADIOMETRIX [Radiometrix Ltd], RPC-UHF Datasheet - Page 4
RPC-UHF
Manufacturer Part Number
RPC-UHF
Description
Radio Packet Controller
Manufacturer
RADIOMETRIX [Radiometrix Ltd]
Datasheet
1.RPC-UHF.pdf
(28 pages)
- Current page: 4 of 28
- Download datasheet (711Kb)
T
RANSMIT
On receipt of a data packet from the host, the RPC will append to the packet - preamble, frame
sync byte and an error check sum. The packet is then coded for mark:space balance and
transmitted. A full 27 byte packet is transmitted in 13.8ms of TX air time (40kb/s + 5ms
preamble).
Collision avoidance (Listen Before Transmit-LBT) functions can be enabled to prevent loss of
packets.
Data packets may be sent with either normal or extended preamble. Extended preamble is
used if the remote RPC is in power save mode. Extended preamble length can be changed in
the EEPROM memory.
R
ECEIVE
On detection of preamble from the radio receiver, the RPC will phase lock, decode and error
check the incoming synchronous data stream and if successful. The data is then placed in a
buffer and the RX Request line is pulled low to signal to the host that a valid packet awaits to
be uploaded to the Host.
An in-coming data packet is presented back to the host in the same form as it was given.
Radiometrix Ltd, RPC
page 4
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