I am working on a project, (still in the nascent stage) where I have to implement a serial communication interface and an Ethernet interface. I tried to find out as much as I can and got the following information:
- For the serial interface I can implement using (DB9/DB25 via max232 line driver)
For RJ45 interface I am in doubt which method is right. Either:
- RJ45 => Ethernet Controller IC => Microcontroller(with SPI) would this method interfere with the serial communication port as SPI would require rxd and txd pins of micro-controller which are used to connect with pins of line driver (totally confused)
- RJ45 => Micro-controller( I doubt it)
Kindly advise, please forgive my ignorance I am quite new to networking arena.