NRF2401AG Nordic VLSI, NRF2401AG Datasheet - Page 18

• Manufacturer Part Number: NRF2401AG
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF2401A Single Chip 2.4 GHz Radio Transceiver
Configuration Word overview
The configuration word is shifted in MSB first on positive CLK1 edges. New
configuration is enabled on the falling edge of CS.
NOTE.
On the falling edge of CS, the nRF2401A updates the number of bits actually shifted
in during the last configuration.
Ex:
If the nRF2401A is to be configured for 2 channel RX in ShockBurst™, a total of 120
bits must be shifted in during the first configuration after VDD is applied.
Once the wanted protocol, modus and RF channel are set, only one bit (RXEN) is
shifted in to switch between RX and TX.
Nordic Semiconductor ASA
Revision: 1.1
position
143:120
119:112
111:104
103:64
63:24
23:18
12:10
Bit
9:8
7:1
17
16
15
14
13
0
Number
of bits
- Vestre Rosten 81, N-7075 Tiller, Norway
24
40
40
8
8
6
1
1
1
1
1
3
2
7
1
Table 8 Table of configuration words.
TEST
DATA2_W
DATA1_W
ADDR2
ADDR1
ADDR_W
CRC_L
CRC_EN
RX2_EN
CM
RFDR_SB
XO_F
RF_PWR
RF_CH#
RXEN
Name
Page 18 of 40
Reserved for testing
Length of data payload section RX channel 2
Length of data payload section RX channel 1
Up to 5 byte address for RX channel 2
Up to 5 byte address for RX channel 1
Number of address bits (both RX channels).
RF data rate (1Mbps requires 16MHz crystal)
Crystal frequency
Function
8 or 16 bit CRC
Enable on-chip CRC generation/checking.
Enable two channel receive mode
Communication mode (Direct or ShockBurst™)
RF output power
Frequency channel
RX or TX operation
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Fax [phone]
March 2006