nRF24LE1 Nordic VLSI, nRF24LE1 Datasheet - Page 26

• Manufacturer Part Number: nRF24LE1
• Manufacturer: Nordic VLSI

nRF24LE1 Preliminary Product Specification
3.4.4
The automatic packet assembly assembles the preamble, address, packet control field, payload and CRC
to make a complete packet before it is transmitted.
Revision 1.1
Automatic packet assembly
PID[7:3]= #bytes in TX_FIFO
CRC based on Address, PID
Calculate and add 2 Byte
Collect Address from
Collect Payload from
Add preamble 0x55
Figure 9. Automatic packet assembly
TX_ADDR MSB =1
SPI TX command:
TX_ADDR register
W_TX_PAYLOAD
EN_CRC = 1
and Payload
New data in
PID[2:1]++
CRCO = 1
EN_DPL=1
TX_FIFO
TX_FIFO
PID[0]=0
STOP
Start:
26 of 191
REUSE_TX_PL
Add preamble 0xAA
active
PID[0]=1
Calculate and add 1 Byte CRC
based on Address, PID and
Payload