Input Ports
Port Name  | 
Required  | 
Description  | 
Comments  | 
|---|---|---|---|
ncs  | 
Yes  | 
Device select input.  | 
The ncs port is used with the SPI protocol only.  | 
sck  | 
Yes  | 
Serial data clock.  | 
The sck port is used with the SPI protocol only.  | 
si  | 
Yes  | 
Serial data input.  | 
The si port is used with the SPI protocol only.  | 
oscena  | 
No  | 
Signal that enables the internal oscillator.  | 
De-assert the oscena port to disable the oscillator (osc) port when not using the SPI interface protocol.  |