We are currently developing a new product, based around the LPC55xx series.
I noticed that some pins can be configured as SDAX or as SDA, or similarly, SCLX or SCL.
However, looking in the user manual of the processor, it is not clear to me what the differences between these functions are.
I also noticed that the MCUXpresso Config Tool doesn't even mention the X (just show SCL and SDA).
- FUNC = 1: FC1_CTS_SDAX_SSEL0
- FUNC = 5: FC1_RXD_SDA_MOSI
- FUNC = 1: FC1_RTS_SCLX_SSEL1
- FUNC = 6: FC1_TXD_SCL_MISO
Can someone explain to me what the difference is and why I should choose one over the other?