[19]?
?
How?to?use?CGRAM?
The?Character?Generator?RAM?(CGRAM)?is?used?to?generate?custom?5x8?character?patterns.?There?are?8?available?
addresses:?CGRAM?Address?0x00?through?0x08.?
?
Character?Code?
DDRAM?address?on?Font?
Table?used?to?write?
CGRAM?character?to?
display?
?
CGRAM?Address?
0
?
Character?Patterns?
(CGRAM?data)?
Character?Patterns?
(CGRAM?data)?
?
5?
4?
3?
2?
1?
0
7
6
5
4
3
2
1
0
?
?
0x00?
0?
0?
0?
0?
0?
0
‐‐‐1
1
1
1
0
Character?pattern?#0?
0?
0?
1
‐‐‐1
0
0
0
1
0?1?0
‐‐‐1
0
0
0
1
0?1?1
‐‐‐1
1
1
1
0
1?0?0
‐‐‐1
0
1
0
0
1?0?1
‐‐‐1
0
0
1
0
1?1?0
‐‐‐1
0
0
0
1
1?1?1
‐‐‐0
0
0
0
0
Cursor?position?
0x01?
0?
0?
1?
0?
0?
0
‐‐‐1
0
0
0
1
Character?pattern?#1?
0?
0?
1
‐‐‐0
1
0
1
0
0?1?
‐‐‐1
1
1
1
1
0?1?1
‐‐‐0
0
1
0
0
1?0?0
‐‐‐1
1
1
1
1
1?0?1
‐‐‐0
0
1
0
0
1?1?0
‐‐‐0
0
1
0
0
1?1?1
‐‐‐0
0
0
0
0
Cursor?position?
0x02...0x06?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.?
.
.
.
.?
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
.
.
.
.?
.?
.?
.?
.?
.
.
.
.
.
.
.
.
.
.
.
.
?
0x07?
1?
1?
1?
0?
0?
0
‐‐‐0
0
0
0
0
Character?pattern?#7?
0?
0?
1
‐‐‐0
1
0
1
0
0?1?0
‐‐‐0
0
0
0
0
0?1?1
‐‐‐0
0
0
0
0
1?0?0
‐‐‐1
0
0
0
1
1?0?1
‐‐‐0
1
1
1
0
1?1?0
‐‐‐0
0
1
0
0
1?1?1
‐‐‐0
0
0
0
0
Cursor?position?
Notes:?
“‐”?=?Not?used?
The?cursor?line?position?can?be?used,?it?will?be?displayed?as?a?logic‐OR?if?the?cursor?is?turned?ON.?
CGRAM?is?stored?in?positions?0x00?through?0x07?of?the?font?table.?Therefore,?to?write?the?first?CGRAM?character?to?the?
display,?you?would?move?the?cursor?to?the?desired?DDRAM?location?on?the?display?and?write?character?data?0x00.?
?
?
?
?
?
?
?
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