Manual

PAGE 29
Technical support [phone] www.avalanwireless.com
AW900mSPI
User’s Manual
Suggested UART User Implementation:
Diagnostic LEDs
CongurationDIPs
AvaLAN AW900mSPI
PC
Single Port
USB to UART
Chip
UART
to SPI
Chip
USB UART 0 SPI 0
UART data at 9600 to 115,200 bps
conguration data and statistics
User’s
Embedded
µController
(Recommended
but not required)
Suggested SPI User Implementation:
Diagnostic LEDs
CongurationDIPs
AvaLAN AW900mSPI
SPI 0
SPI data at 7 Mbps
conguration data and statistics
User’s
Embedded
µController
SPI 1
(Recommended
but not required)
Note that if you are using the AW900mSPI in UART mode, you may wish to include
a USB interface to SPI0 similar to that implemented in the Evaluation Board. This
wouldallowyoutomodifytheconguration,toreadbackoperatingstatisticsand
to perform spectrum analysis. If those capabilities are not needed, then the cost
and space can be avoided.
Implementation Block Diagrams