nRF24E1 Nordic VLSI, nRF24E1 Datasheet - Page 19

• Manufacturer Part Number: nRF24E1
• Description: 2.4Ghz RF Transceiver With Embedded 8051 Compatible Microcontroller And 9 Input, 10 Bit ADC
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
Figure 4-1 : Transceiver interface
During the period the internal reset is active (regardless of whether or not the clock is
running), the RADIO outputs that control the nRF2401 transceiver subsystem are
forced to their respective default values (RADIO.3=0 (CS), RADIO.6=0 (CE)
RADIO.7=1 (PWR_UP)). When program execution starts, these ports will remain at
those default levels until the programmer actively changes them by writing to the
RADIO register.
The nRF2401 subsystem can be set in the following main modes depending on three
control pins:
Table 4-4 nRF2401 subsystem main modes
The nRF2401 subsystem has two active (RX/TX) modes:
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Revision: 1.0
SDI
DR2
CLK2
DOUT2 4
DR1
CLK1
DATA
read
--------------------------
Active (RX/TX)
Configuration
Stand by
Power down
bitno
0
7 PWR_UP
6
5
3
2
1
ShockBurst™
Direct Mode (not supported by nRF24E1)
DATA
write
CLK2
CLK1
SDO
SCK
CE
CS
2
PWR_UP
MUX
SPI_CTRL
1
1
1
0
Qhtrà (ÂsÃ(&
2
MUX
MUX
CE
3
X
1
0
0
MUX
2
3
PWR_UP
CE
CLK2
CS
CLK1
DATA
input
------------------------
CS
X
0
1
0
DOUT2
output
DATA
CLK2
CLK1
DR2
DR1
July 2003