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ADF7021 Datasheet(PDF) 26 Page - Analog Devices

Part # ADF7021
Description  High Performance Narrowband ISM Transceiver IC
Download  44 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADF7021 Datasheet(HTML) 26 Page - Analog Devices

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ADF7021
Preliminary Technical Data
Rev. PrI | Page 26 of 44
INTERFACING TO MICROCONTROLLER/DSP
Low level device drivers are available for interfacing to the
ADF7021, such as the ADuC84x microcontroller parts, or the
Blackfin® ADSP-BF53x DSPs. Use the hardware connections
shown in Figure 28 and Figure 29.
UART Mode
If a data synchronization clock is not required, the DATA_CLK|
TxDATA pin can be configured to input transmit data in
transmit mode. In receive mode, the receive data is available on
the DATA_I/O|RxDATA pin. This allows a UART to be easily
interfaced to the part, with dedicated pins for transmitted and
received data, as shown in Figure 30. To enable this UART
interface mode, set Bit R0_DB28 high.
MISO
ADuC84x
ADF7021
MOSI
SCLOCK
SS
P3.7
P3.2/INT0
P2.4
P2.5
TxRxDATA
RxCLK
CE
INT/LOCK
SREAD
SLE
P2.6
P2.7
SDATA
SCLK
GPIO
Figure 28. ADuC84x to ADF7021 Connection Diagram
MOSI
ADSP-BF533
ADF7021
MISO
PF5
RSCLK1
DT1PRI
DR1PRI
RFS1
PF6
SDATA
SLE
TxRxDATA
RxCLK/DATA
CE
VCC
GND
VCC
GND
SCK
SCLK
SREAD
RxCLK/DATA
Figure 29. ADSP-BF533 to ADF7021 Connection Diagram
UART
ADF7021
DATA_CLK | TxDATA
DATA I/O | RxDATA
TxDATA
RxDATA
Figure 30. UART to ADF7021 Connection Diagram


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