[8]?
?
Instruction?Descriptions?
When?an?instruction?is?being?executed,?only?the?Busy?Flag?read?instruction?can?be?performed.?During?execution?of?an?
instruction,?the?Busy?Flag?=?“1”.?When?BF?=?“0”?instructions?can?be?sent?to?the?controller.?
?
Clear?Display??
RS?
R/W?
DB7?
DB6?
DB5?
DB4?
DB3
DB2
DB1
DB0
0?
0?
0?
0?
0?
0?
0
0
0
1
This?instruction?is?used?to?clear?the?display?by?writing?0x20?in?all?DDRAM?addresses.?This?instruction?does?not?change?the?
DDRAM?Address.??
?
Return?Home?
RS?
R/W?
DB7?
DB6?
DB5?
DB4?
DB3
DB2
DB1
DB0
0?
0?
0?
0?
0?
0?
0
0
1
0
This?instruction?is?used?to?set?the?DDRAM?Address?to?0x00?and?shifts?the?display?back?to?the?original?state.?The?cursor?(if?
on)?will?be?at?the?first?line’s?left‐most?character.?The?DDRAM?contents?on?the?display?do?not?change.?
?
Entry?Mode?Set?
RS?
R/W?
DB7?
DB6?
DB5?
DB4?
DB3
DB2
DB1
DB0
0?
0?
0?
0?
0?
0?
0
1
I/D
S
I/D?=?Increment/Decrement?
When?I/D?=?“1”,?the?DDRAM?or?CGRAM?Address?with?automatically?increment?when?a?character?code?is?written?into?or?
read?from?the?DDRAM?or?CGRAM.?The?auto‐increment?will?move?the?cursor?one?character?space?to?the?right.?
When?I/D?=?“0”,?the?DDRAM?or?CGRAM?Address?with?automatically?decrement?when?a?character?code?is?written?into?or?
read?from?the?DDRAM?or?CGRAM.?The?auto‐decrement?will?move?the?cursor?one?character?space?to?the?left.?
?
S?=?Shift?Entire?Display?
When?S?=?“1”,?the?entire?display?is?shifted?to?the?right?(when?I/D?=?“0”)?or?left?(when?I/D?=?“1”).?
?
I/D=1, S=1
I/D=0, S=1
?
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