Data Sheet

Revision 2.0 Page 66 of 74
nRF24L01 Product Specification
when RX_DR is high. RX_P_NO in STATUS register indicates what data pipe the payload has been
received in.
5. If auto acknowledgement is enabled, an ACK packet is transmitted back, unless the NO_ACK bit
is set in the received packet. If there is a payload in the TX_PLD FIFO, this payload is added to
the ACK packet.
6. MCU sets the CE pin low to enter standby-I mode (low current mode).
7. MCU can clock out the payload data at a suitable rate through the SPI.
8. nRF24L01 is now ready for entering TX or RX mode or power down mode.