NRF9E5 Datasheet, PDF (33/104 Pages) List of Unclassifed Manufacturers – 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC

PRODUCT SPECIFICATION
nRF9 E5 Single Chip Transceiver with Embedded Microcontroller and ADC
11 TRANCEIVER AND AD CONVERTER CONFIGURATION
All configuration of the transceiver and AD converter subsystem is done via an internal
SPI -interface of the two systems. The interface consists of 7 registers, a SPI instructions
set is used to decide which operation shall be performed. The SPI-interface can only be
activated when the transceiver is in standby mode. All references to the SPI interface in
this chapter refer to the internal SPI interface of the transceiver and AD converter
subsystem.
11.1 Internal SPI Register Configuration
The SPI-interface consists of seven internal registers. A register read-back mode is
implemented to allow verification of the register contents
MISO
MOSI
SCK
CSN
I/O-reg
EN
STATUS-REGISTER
CLK
EN
DTA
CLK
ADC-CONFIGURATION-
REGISTER
EN
DTA
CLK
ADC-DATA-
REGISTER
EN
DTA
CLK
EN
DTA
CLK
RF-CONFIGURATION-
REGISTER
TX-ADDRESS
EN
DTA
CLK
EN
CLK
TX-PAYLOAD
RX-PAYLOAD
Figure 10 SPI – interface composed of seven internal registers.
Status – Register
Register contains status of Data Ready (DR), Address Match (AM),
ADC_End_Of_Conversion and ADC_Ready_Flag
ADC- Configuration – Register
Register contains information of ADC setup such as resolution control, channel select,
differential or single ended mode, continuous or single conversion mode etc.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.1
Page 33 of 104
June 2004