User Manual

Revision 1.0 Page 61 of 78
nRF24L01+ Product Specification
RX_PW_P3 5:0 0 R/W Number of bytes in RX payload in data pipe 3 (1 to
32 bytes).
0 Pipe not used
1 = 1 byte
…
32 = 32 bytes
15 RX_PW_P4
Reserved 7:6 00 R/W Only '00' allowed
RX_PW_P4 5:0 0 R/W Number of bytes in RX payload in data pipe 4 (1 to
32 bytes).
0 Pipe not used
1 = 1 byte
…
32 = 32 bytes
16 RX_PW_P5
Reserved 7:6 00 R/W Only '00' allowed
RX_PW_P5 5:0 0 R/W Number of bytes in RX payload in data pipe 5 (1 to
32 bytes).
0 Pipe not used
1 = 1 byte
…
32 = 32 bytes
17 FIFO_STATUS FIFO Status Register
Reserved 7 0 R/W Only '0' allowed
TX_REUSE 6 0 R Used for a PTX device
Pulse the
rfce high for at least 10µs to Reuse last
transmitted payload. TX payload reuse is active
until
W_TX_PAYLOAD or FLUSH TX is executed.
TX_REUSE is set by the SPI command
REUSE_TX_PL, and is reset by the SPI commands
W_TX_PAYLOAD or FLUSH TX
TX_FULL
5 0 R TX FIFO full flag. 1: TX FIFO full. 0: Available loca-
tions in TX FIFO.
TX_EMPTY 4 1 R TX FIFO empty flag.
1: TX FIFO empty.
0: Data in TX FIFO.
Reserved 3:2 00 R/W Only '00' allowed
RX_FULL 1 0 R RX FIFO full flag.
1: RX FIFO full.
0: Available locations in RX FIFO.
RX_EMPTY 0 1 R RX FIFO empty flag.
1: RX FIFO empty.
0: Data in RX FIFO.
Address
(Hex)
Mnemonic Bit
Reset
Value
Type Description