NRF2401AG Nordic VLSI, NRF2401AG Datasheet - Page 17

• Manufacturer Part Number: NRF2401AG
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF2401A Single Chip 2.4 GHz Radio Transceiver
DEVICE CONFIGURATION
All configuration of the nRF2401A is done via a 3-wire interface to a single
configuration register. The configuration word can be up to 15 bytes long for
ShockBurst™ use and up to 2 bytes long for direct mode.
Configuration for ShockBurst™ operation
The configuration word in ShockBurst™ enables the nRF2401A to handle the RF
protocol. Once the protocol is completed and loaded into nRF2401A only one byte,
bit[7:0], needs to be updated during actual operation.
The configuration blocks dedicated to ShockBurst™ is as follows:
NOTE:
These configuration blocks, with the exception of the CRC, are dedicated for the
packages that a nRF2401A is to receive.
In TX mode, the MCU must generate an address and a payload section that fits the
configuration of the nRF2401A that is to receive the data.
When using the nRF2401A on-chip CRC feature ensure that CRC is enabled and uses
the same length for both the TX and RX devices.
Configuration for Direct Mode operation
For direct mode operation only the two first bytes (bit[15:0]) of the configuring word
are relevant.
Nordic Semiconductor ASA
Revision: 1.1
PRE-AMBLE
• Payload section width: Specifies the number of payload bits in a RF package.
• Address width: Sets the number of bits used for address in the RF package.
• Address (RX Channel 1 and 2): Destination address for received data.
• CRC: Enables nRF2401A on-chip CRC generation and de-coding.
This enables the nRF2401A to distinguish between payload data and the CRC
bytes in a received package.
This enables the nRF2401A to distinguish between address and payload data.
ADDRESS
- Vestre Rosten 81, N-7075 Tiller, Norway
Figure 10 Data packet set-up
Page 17 of 40
PAYLOAD
-
Phone [phone]
-
Fax [phone]
CRC
March 2006