NRF24L01P-R datasheet(58/78 Pages) NORDIC

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Revision 1.0

Page 58 of 78

nRF24L01+ Product Specification

ERX_P1

R/W Enable data pipe 1.

ERX_P0

R/W Enable data pipe 0.

SETUP_AW

Setup of Address Widths

(common for all data pipes)

Reserved

7:2

000000

R/W Only '000000' allowed

1:0

R/W RX/TX Address field width

'00' - Illegal

'01' - 3 bytes

'10' - 4 bytes

'11' – 5 bytes

LSByte is used if address width is below 5 bytes

SETUP_RETR

Setup of Automatic Retransmission

ARD

7:4

0000

R/W Auto Retransmit Delay

‘0000’ – Wait 250µS

‘0001’ – Wait 500µS

‘0010’ – Wait 750µS

……..

‘1111’ – Wait 4000µS

(Delay defined from end of transmission to start of

next transmission)b

ARC

3:0

0011

R/W Auto Retransmit Count

‘0000’ –Re-Transmit disabled

‘0001’ – Up to 1 Re-Transmit on fail of AA

……

‘1111’ – Up to 15 Re-Transmit on fail of AA

RF_CH

RF Channel

Reserved

R/W Only '0' allowed

RF_CH

6:0

0000010

R/W Sets the frequency channel nRF24L01+ operates

RF_SETUP

RF Setup Register

CONT_WAVE

R/W Enables continuous carrier transmit when high.

Reserved

R/W Only '0' allowed

RF_DR_LOW

R/W Set RF Data Rate to 250kbps. See RF_DR_HIGH

for encoding.

PLL_LOCK

R/W Force PLL lock signal. Only used in test

RF_DR_HIGH

R/W Select between the high speed data rates. This bit

is don’t care if RF_DR_LOW is set.

Encoding:

[RF_DR_LOW, RF_DR_HIGH]:

‘00’ – 1Mbps

‘01’ – 2Mbps

‘10’ – 250kbps

‘11’ – Reserved

Address

(Hex)

Mnemonic

Bit

Reset

Value

Type

Description

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