Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

RFM73P Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers

Part # RFM73P
Description  Low Power High Performance 2.4 GHz GFSK Transceiver Module
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ETC2 [List of Unclassifed Manufacturers]
Direct Link  
Logo ETC2 - List of Unclassifed Manufacturers

RFM73P Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers

Back Button RFM73P Datasheet HTML 5Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 6Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 7Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 8Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 9Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 10Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 11Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 12Page - List of Unclassifed Manufacturers RFM73P Datasheet HTML 13Page - List of Unclassifed Manufacturers Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 25 page
background image
9
5.1.1
Preamble
The preamble is a bit sequence used to detect 0
and 1 levels in the receiver. The preamble is
one byte long and is either 01010101 or
10101010. If the first bit in the address is 1 the
preamble is automatically set to 10101010 and
if
the
first
bit
is
0
the
preamble
is
automatically set to 01010101. This is done to
ensure there are enough transitions in the
preamble to stabilize the receiver.
5.1.2
Address
This is the address for the receiver. An address
ensures that the packet is detected by the target
receiver. The address field can be configured
to be 3, 4, or 5 bytes long by the AW register.
The PRX device can open up to six data pipes
to support up to six PTX devices with unique
addresses. All six PTX device addresses are
searched simultaneously. In PRX side, the data
pipes
are
enabled
with
the
bits
in
the
EN_RXADDR register. By default only data
pipe 0 and 1 are enabled.
Each data pipe address is configured in the
RX_ADDR_PX registers.
Each pipe can have up to 5 bytes configurable
address. Data pipe 0 has a unique 5 byte
address. Data pipes 1-5 share the 4 most
significant address bytes. The LSB byte must
be unique for all 6 pipes.
To ensure that the ACK packet from the PRX
is transmitted to the correct PTX, the PRX
takes the data pipe address where it received
the packet and uses it as the TX address when
transmitting the ACK packet.
On the PRX the RX_ADDR_Pn, defined as
the pipe address, must be unique. On the PTX
the TX_ADDR must be the same as the
RX_ADDR_P0 on the PTX, and as the pipe
address for the designated pipe on the PRX.
No other data pipe can receive data until a
complete packet is received by a data pipe that
has detected its address. When multiple PTX
devices are transmitting to a PRX, the ARD
can be used to skew the auto retransmission so
that they only block each other once.
5.1.3
Packet ontrol
When Dynamic Payload Length function is
enabled, the packet control field contains a 6
bit payload length field, a 2 bit PID (Packet
Identity) field and, a 1 bit NO_ACK flag.
Payload length
The payload length field is only used if the
Dynamic Payload Length function is enabled.
PID
The 2 bit PID field is used to detect whether
the received packet is new or retransmitted.
PID prevents the PRX device from presenting
the same payload more than once to the MCU.
The PID field is incremented at the TX side
for each new packet received through the SPI.
The PID and CRC fields are used by the PRX
device to determine whether a packet is old or
new. When several data packets are lost on the
link, the PID fields may become equal to the
last received PID. If a packet has the same PID
as the previous packet, RFM73P-S2 compares
the CRC sums
from both packets.
If the
CRC sums are also equal, the last received
packet is considered a copy of the previously
received packet and discarded.
NO_ACK
The NO_ACK flag is only used when the auto
acknowledgement feature is used. Setting the
flag high, tells the receiver that the packet is
not to be auto acknowledged.
The PTX can set the NO_ACK flag bit in the
Packet
Control
Field
with
the
command:
W_TX_PAYLOAD_NOACK.However,
the
function
must
first
be
enabled
in
the
FEATURE
register
bysetting
the
EN_DYN_ACK bit. When you use this option,
RFM73P-S2 V2.0
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com


Similar Part No. - RFM73P

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
RFM73 ETC2-RFM73 Datasheet
1Mb / 27P
   Low Power High Performance 2.4 GHz GFSK Transceiver
logo
Token Electronics Indus...
RFM73100RDC1P TOKEN-RFM73100RDC1P Datasheet
439Kb / 5P
   Non-Inductive High Frequency Melf Resistors
RFM73100RDC1TR TOKEN-RFM73100RDC1TR Datasheet
439Kb / 5P
   Non-Inductive High Frequency Melf Resistors
RFM73100RDC2P TOKEN-RFM73100RDC2P Datasheet
318Kb / 3P
   RFM High Frequency MELF Resistors
RFM73100RDC2P TOKEN-RFM73100RDC2P Datasheet
439Kb / 5P
   Non-Inductive High Frequency Melf Resistors
More results

Similar Description - RFM73P

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
RFM75P ETC2-RFM75P Datasheet
612Kb / 26P
   Low Power High Performance 2.4 GHz GFSK Transceiver
RFM73 ETC2-RFM73 Datasheet
1Mb / 27P
   Low Power High Performance 2.4 GHz GFSK Transceiver
RFM75 ETC2-RFM75 Datasheet
757Kb / 27P
   Low Power High Performance 2.4 GHz GFSK Transceiver
TRW-24G2 ETC2-TRW-24G2 Datasheet
1Mb / 22P
   Low Power High Performance 2.4 GHz GFSK Transceiver
BK2425 ETC2-BK2425 Datasheet
1Mb / 30P
   Low Power High Performance 2.4 GHz GFSK Transceiver
logo
HOPE Microelectronics C...
RFM75P HOPE-RFM75P Datasheet
1Mb / 26P
   Low Power High Performance GFSK Transceiver
RFM75 HOPE-RFM75 Datasheet
1Mb / 28P
   Low Power High Performance GFSK Transceiver
logo
Microchip Technology
ZG2100M MICROCHIP-ZG2100M Datasheet
592Kb / 32P
   2.4 GHz 802.11b Low Power Transceiver Module
2010
logo
Analog Devices
ADF7242 AD-ADF7242 Datasheet
1Mb / 108P
   Low Power IEEE 802.15.4/Proprietary GFSK/FSK Zero-IF 2.4 GHz Transceiver IC
REV. 0
logo
Murata Manufacturing Co...
XDM2510HC MURATA-XDM2510HC Datasheet
931Kb / 16P
   2.4 GHz Ultra-low Power WirelessHART RF Transceiver Module
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com