NRF9E5 NORDIC SEMICONDUCTOR, NRF9E5 Datasheet - Page 21

• Manufacturer Part Number: NRF9E5
• Description: TRX, 430-928MHZ, MCU/ADC/PWM, SMD
• Manufacturer: NORDIC SEMICONDUCTOR

Specifications of NRF9E5

• Receiving Current: 12.5mA
• Transmitting Current: 30mA
• Data Rate: 50Kbps
• Frequency Range: 430MHz To 928MHz
• Modulation Type: GFSK
• Rf Ic Case Style: QFN
• No. Of Pins: 32
• Supply Voltage Range: 1.9V To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
8.1.1 Controlling the Transceiver via SPI Interface.
Normally the SPI hardware interface rather than GPIO programming will do the data
transfers to the transceiver. Please see Table 33 SPI control and data SFR-registers for
use of SPI interface. When SPI_CTRL is ‘0x’, all radio pins are connected directly to
their respective port pins and the SPI functionality may be implemented in software.
8.1.2 P2 Port Behavior During RESET
During the period the internal reset is active (regardless of whether or not the clock is
running), the P2 outputs that control the nRF905 transceiver subsystem are forced to
their respective default values. When program execution starts, these ports will remain at
those default levels until the programmer actively changes them by writing to the P2
register.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.3
Read
AM
CD
DR
EOC
SBMISO
datain
SPI Hardware
P2 register
bit
7
6
5
4
3
2
1
0
TRX_CE
SBMOSI
RACSN
dataout
SBSCK
TX_EN
clock
Write
Figure 4 Transceiver interface.
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SPI_CTRL=1x
1
0
1
0
MUX
MUX
MUX
0
1
from IO-pin
TRX_CE
TX_EN
CSN
MOSI
SCK
nRF905/AD
MISO
EOC
AM
CD
DR
June 2006