nRF24E2 Nordic VLSI, nRF24E2 Datasheet - Page 23

• Manufacturer Part Number: nRF24E2
• Description: Single Chip RF Transmitter + MCU + ADC NRF2402 2.4GHz RF Transmitter
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
All configuration of the transmitter subsystem is done via a 3-wire interface interface
(CS, CLK1 and DATA) to a single configuration register. The configuration word can
be up to 18 bits long. The configuration bits (DATA) must be clocked (by CLK1) into
transmitter subsystem, with msb first, while CS=1. No more than 18 bits may be
downloaded.
The configuration word in ShockBurst™ enables the transmitter subsystem to handle
the RF protocol. Once the protocol is completed and loaded into transmitter
subsystem only one byte, bit[7:0], needs to be updated during actual operation.
The configuration blocks dedicated to ShockBurst™ is as follows:
CRC: Enables on-chip CRC generation and de-coding.
NOTE:
The CPU must generate an address and a payload section that fits the configuration of
the nRF24x1 subsystem that is to receive the data.
When using the transmitter subsystem on-chip CRC feature ensures that CRC is
enabled and uses the same length for both the TX and RX devices.
PRE-AMBLE
ADDRESS
PAYLOAD
CRC
Figure 4-5Data packet set-up
For direct mode operation only the two first bytes (bit[15:0]) of the configuring word
are relevant.
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Revision: 1.0
August 2003
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