NRF2402G Nordic VLSI, NRF2402G Datasheet - Page 14

• Manufacturer Part Number: NRF2402G
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF2402 Single Chip 2.4 GHz Radio Transmitter
Configuration for Direct Mode operation
For direct mode operation only the 14 first bits (bit[13:0]) of the configuring word is
relevant.
Configuration Word overview
The configuration word is shifted in MSB first on positive CLK edges. New
configuration is enabled on the negative edge of CS.
NOTE!
On the negative edge of CS, the nRF2402 updates the number of bits actually shifted
in during the last configuration.
Ex:
If the nRF2402 is to be configured for Preamble and CRC in ShockBurst™, a total of
17 bits must be shifted in during the first configuration after VDD is applied.
Once the wanted "protocol" and modus are set there is no need to update this part of
the configuration during operation. If RF channel is to be changed, only the RF_CH#
bits need to be updated.
Nordic Semiconductor ASA
Revision: 2.1
position
11:9
Bit
8:7
6:0
19
18
17
16
15
14
13
12
Number
of bits
-
6
1
1
1
1
1
1
1
3
2
7
Vestre Rosten 81, N-7075 Tiller, Norway
Table 8 Table of configuration words.
PLL Control
PREAMBLE
PREAMBLE
CRC
CRC
CM
RFDR_SB
XO_F
RF_PWR
RF_CH#
Name
Page 14 of 32
Close the PLL for test.
UNUSED
Enable on-chip PREAMBLE generation
UNUSED, must be 1
8 or 16 bit CRC
Enable on-chip CRC generation
Communication mode (Direct or ShockBurst™)
RF data rate (1Mbps requires 16MHz crystal)
Crystal frequency
RF output power
Frequency channel (0 to 127)
-
Phone [phone]
Function
- Fax [phone]
March 2006