LCD instruction in detail

INSTRUCTIONS	RS	R/W	DB7	DB6	DB5	DB4	DB3	DB2	DB1	DB0	DESCRIPTION
Clear display	0	0	0	0	0	0	0	0	0	1	Clear entire display
Return Home	0	0	0	0	0	0	0	0	1	-	Returns display to be shifted to original position
Entry mode set	0	0	0	0	0	0	0	1	1/D	S	Sets cursor move direction and specifies shift of display. Performed during data write and read
Display On/Off control	0	0	0	0	0	0	1	D	C	B	D – sets on off entire display. C – cursor on off B – blink of cursor position character
Cursor or display shift	0	0	0	0	0	1	S/C	R/L	-	-	Moves cursor and shifts display without changing DD RAM contents.
Function set	0	0	0	0	1	DL	N	F	-	-	DL – sets interface data length L – number of display lines F – character font
Set CG RAM Address	0	0	0	1		AGC					Sets CG RAM address. CG RAM data is sent and received after this setting
Set DD RAM Address	0	0	1			ADD					Sets DD RAM address. DD RAM address is sent and received after this setting
Read Busy Flag and address	0	1	BF			AC					Reads Busy Flag BF indicating internal operation is being performed and reads address counter contents
Write data CG RAM or DD RAM	1	0	WRITE DATA								Writes data into DD or CG RAM
Read data CG RAM or DD RAM	1	1	READ DATA								Reads data from DD or CG RAM