Digi NS9210 - Manual (Page 52)

52 NS9210 Processor Module Hardware Reference
C h a p t e r 2
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S P I i n t e r f a c e
The development board provides access to the SPI interface on the module using
the SPI connector, X8. The SPI interface on the development board is shared with
UART_A (NS9215 port A). Because the module’s SPI interface is shared with a UART
interface, you cannot use both simultaneously.
Note: The default configuration of UART port A is to support GPIOs. To move from
GPIO to UART or SPI, you need to configure the software properly.
SPI header, X8