NRF2402 Datasheet, PDF (13/31 Pages) List of Unclassifed Manufacturers – Single chip 2.4 GHz Transmitter

PRODUCT SPECIFICATION
nRF2402/nRF2402G Single Chip 2.4 GHz Radio Transmitter
DEVICE CONFIGURATION
All configuration of the nRF2402/nRF2402G is done via a 3-wire interface to a single
configuration register. The configuration word can be up to 20 bits long for ShockBurst™ use
and up to 14 bits long for direct mode.
Configuration for ShockBurst™ operation
The configuration word in ShockBurst™ enables the nRF2402/nRF2402G to handle the RF
protocol (in co-operation with nRF2401/nRF24E1). Once the protocol is completed and
loaded into nRF2402/nRF2402G only seven bits, also used in direct mode, needs to be
updated during operation.
The configuration bits dedicated to ShockBurst™ is as follows:
• Preamble: Generation of 8 bit preamble in transmitted data.
• CRC: Enables nRF2402/nRF2402G on-chip CRC generation.
NOTE:
The MCU must generate an address and a payload section that fits the configuration of the
nRF2401/nRF24E1 that is to receive the data.
When using the nRF2402/nRF2402G on-chip CRC feature ensure that CRC is enabled and
uses the same length for both the nRF2402/nRF2402G and the receiving nRF2401/nRF24E1
devices.
PRE-AMBLE ADDRESS
PAYLOAD
Figure 8 Data packet set-up
CRC
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Revision: 2.0
Page 13 of 31
April 2005