IR sensor interfacing with Nuvoton controller.

Hello Sir,

1. I am a beginner in this ,  I am trying to transmit data from one ir sensor to another ir sensor through N76E003 controller. i want to know how to decode that data transmitted by ir sensor.

2.  please guide me how to write c code for this in keil software. 

3. how to include hex file required for remote "nec_ir.h".