nRF24L01 Nordic VLSI, nRF24L01 Datasheet - Page 26

• Manufacturer Part Number: nRF24L01
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF24L01 Single Chip 2.4 GHz Radio Transceiver
Address
(Hex)
05
06
07
21
22
interrupt should be: 1) read payload via SPI, 2) clear RX_DR interrupt, 3) read FIFO_STATUS to
check if there are more payloads available in RX FIFO, 4) if there are more data in RX FIFO, repeat
from 1).
Nordic Semiconductor ASA
Revision: 1.0
This is the time the PTX is in RX listening for an ACK before a re-transmit is made.
The Data Ready interrupt is set by a new packet arrival event. The procedure for handling this
Mnemonic
ARC
RF_CH
Reserved
RF_CH
RF_SETUP
Reserved
PLL_LOCK
RF_DR
RF_PWR
LNA_HCURR
STATUS
Reserved
RX_DR
TX_DS
MAX_RT
RX_P_NO
- Vestre Rosten 81, N-7075 Tiller, Norway
Bit
3:0
6:0
7:5
2:1
3:1
7
4
3
0
7
6
5
4
0000010
Value
Reset
0011
Page 26 of 43
000
111
11
0
0
1
1
0
0
0
0
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
-
Description
(Delay defined from end of transmission
to start of next transmission)
Auto Retransmit Count
RF Channel
Only '0' allowed
Sets the frequency channel nRF24L01
operates on
RF Setup Register
Only '000' allowed
Force PLL lock signal. Only used in test
Data Rate
Set RF output power in TX mode
Setup LNA gain
Status Register (In parallel to the SPI
instruction word applied on the MOSI
pin, the STATUS register is shifted
serially out on the MISO pin)
Only '0' allowed
Data Ready RX FIFO interrupt. Set high
when new data arrives RX FIFO
Write 1 to clear bit.
Data Sent TX FIFO interrupt. Set high
when packet sent on TX. If AUTO_ACK
is activated, this bit will be set high only
when ACK is received.
Write 1 to clear bit.
Maximum number of TX retries interrupt
Write 1 to clear bit. If MAX_RT is
set it must be cleared to enable
further communication.
Data pipe number for the payload
available for reading from RX_FIFO
000-101: Data Pipe Number
110: Not Used
111: RX FIFO Empty
Phone [phone]
‘0001’ – Wait 500uS
‘0010’ – Wait 750uS
……..
‘1111’ – Wait 4000uS
‘0000’ –Re-Transmit disabled
‘0001’ – Up to 1 Re-Transmit
on fail of AA
……
‘1111’ – Up to 15 Re-Transmit
on fail of AA
‘0’ – 1 Mbps
‘1’ – 2 Mbps
'00' – -18 dBm
'01' – -12 dBm
'10' – -6 dBm
'11' –
0 dBm
-
Fax [phone]
21
September 2006
22
.