nRF24LE1 Nordic VLSI, nRF24LE1 Datasheet - Page 35

• Manufacturer Part Number: nRF24LE1
• Manufacturer: Nordic VLSI

nRF24LE1 Preliminary Product Specification
The PRX, using MultiCeiver™ and Enhanced ShockBurst™, receives packets from more than one PTX. 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.
Figure 16.
defined as the pipe address, must be unique. On the PTX the TX_ADDR must be the same as the
RX_ADDR_P0 and as the pipe address for the designated pipe.
Only when a data pipe receives a complete packet can other data pipes begin to receive data. When mul-
tiple PTXs are transmitting to a PRX, the ARD can be used to skew the auto retransmission so that they
only block each other once.
3.4.9
This section describes the timing sequence of Enhanced ShockBurst™ and how all modes are initiated
and operated. The Enhanced ShockBurst™ timing is controlled through the Data and Control interface.
The RF Transceiver can be set to static modes or autonomous modes where the internal state machine
Revision 1.1
is an example of an address configuration for the PRX and PTX. On the PRX the RX_ADDR_Pn,
Enhanced ShockBurst
Figure 16. Example of data pipe addressing in MultiCeiver™
PTX1
PTX2
Addr Data Pipe 0 (RX_ADDR_P0): 0x7878787878
Addr Data Pipe 1 (RX_ADDR_P1): 0xB3B4B5B6F1
Addr Data Pipe 2 (RX_ADDR_P2): 0xB3B4B5B6CD
Addr Data Pipe 3 (RX_ADDR_P3): 0xB3B4B5B6A3
Addr Data Pipe 4 (RX_ADDR_P4): 0xB3B4B5B60F
Addr Data Pipe 5 (RX_ADDR_P5): 0xB3B4B5B605
™
Frequency Channel N
timing
PTX3
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PRX
PTX4
PTX5
PTX6