NRF2402 Datasheet, PDF (16/31 Pages) List of Unclassifed Manufacturers – Single chip 2.4 GHz Transmitter

PRODUCT SPECIFICATION
nRF2402/nRF2402G Single Chip 2.4 GHz Radio Transmitter
ShockBurst™ configuration
The section bit[17:14] contains the segments of the configuration register dedicated to
ShockBurst™ operation. After VDD is turned on ShockBurst™ configuration must be done
once, but remains set whilst VDD is present. During operation only the 7 bits for frequency
channel normally need to be changed.
PREAMBLE
17
16
CRC
15 14
Table 9 Preamble and CRC settings.
Bit 17:
PRE_EN:
Preamble to be generated by nRF2402/nRF2402G in ShockBurst™.
Logic 0: No generation of Preamble
Logic 1: Preamble generation enabled (default)
Bit: 16:
Not used, must be set to logic 1
Bit 15:
CRC_L:
CRC length to be calculated by nRF2402/nRF2402G in ShockBurst™.
Logic 0: 8 bit CRC (default)
Logic 1: 16 bit CRC
Bit: 14:
CRC_EN:
Enables on-chip CRC generation (TX)
Logic 0: On-chip CRC generation disabled (default)
Logic 1: On-chip CRC generation enabled
NOTE:
An 8 bit CRC (compared to 16 bit) will increase the number of payload bits
possible in each ShockBurst™ data packet, but will also reduce the
communication integrity.
General device configuration:
This section of the configuration word handles RF and device related parameters.
Burst
13
OD
XO_F
12
11 10 9
Table 10 RF operational settings.
RF_PWR
8
7
Bit 13:
Burst:
Logic 0: nRF2402/nRF2402G operates in direct mode (default)
Logic 1: nRF2402/nRF2402G operates in ShockBurst™ mode
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Revision: 2.0
Page 16 of 31
April 2005