Microcontroller › PIC › Please Help me On LCD Concept › Hi Naga,The reading option is
February 4, 2014 at 6:09 am #10924
The reading option is normally used to check the ‘busy flag’. The LCD module is a very slow device. Once the data is written to it, the internal controller of it will take time to finish the display process of the same data. The user is allowed to write data again once the controller reset the ‘busy flag’ after processing the previous data.