AvaLAN Wireless AW900mSPI-10 - Manual (Page 29)

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AW900mSPI User’s Manual
Suggested UART User Implementation:
Diagnostic LEDs
Configuration 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
configuration data and statistics
User’s
Embedded
µController
(Recommended
but not required)
Suggested SPI User Implementation:
Diagnostic LEDs
Configuration DIPs
AvaLAN AW900mSPI
SPI 0
SPI data at 7 Mbps
configuration 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 configuration, 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