Data Sheet
Revision 2.0 Page 37 of 74
nRF24L01 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 12.
is an example of how address configuration could be for the PRX and PTX. 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 and as the pipe address for the designated pipe.
Figure 12. Example of data pipe addressing in multiceiver
No other data pipe can receive data until a complete packet is received by a data pipe that has detected its
address. When multiple PTXs are transmitting to a PRX, the ARD can be used to skew the auto retrans-
mission so that they only block each other once.
PRX
PTX1
PTX2
PTX3
PTX4
PTX5
PTX6
D
a
t
a
P
i
p
e
1
D
a
t
a
P
i
p
e
2
D
a
t
a
P
i
p
e
3
D
a
t
a
P
i
p
e
4
D
a
t
a
P
i
p
e
5
D
a
t
a
P
i
p
e
0
Frequency Channel N
T
X
_
A
D
D
R
:
0
x
B
3
B
4
B
5
B
6
0
5
R
X
_
A
D
D
R
_
P
0
:
0
x
B
3
B
4
B
5
B
6
0
5
T
X_
A
D
D
R
:
0
xB
3
B
4
B
5
B
6
0
F
R
X
_
A
D
D
R
_
P
0:
0
x
B
3
B
4
B
5B
6
0
F
T
X
_
A
D
D
R
:
0
x
B
3
B
4
B
5
B
6
A
3
R
X
_
A
D
D
R
_
P
0
:
0
x
B
3
B
4
B
5
B
6
A
3
T
X
_
A
D
D
R
:
0
x
B
3
B
4
B
5
B
6
C
D
R
X
_
A
D
D
R
_
P
0
:
0
x
B
3
B
4
B
5
B
6
C
D
T
X
_
A
D
D
R
:
0
x
B
3
B
4
B
5
B
6
F
1
R
X
_
A
D
D
R
_
P
0
:
0
x
B
3
B
4
B
5
B
6
F
1
T
X
_
A
D
D
R
:
0
x
7
8
7
8
7
8
7
8
7
8
R
X
_
A
D
D
R
_
P
0
:
0
x
7
8
7
8
7
8
7
8
7
8
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