RA6963
Preliminary Version 1.3
Dot Matrix LCD Controller
6-8 Mode Set
< Table 6-14 >
Function
Code
Operand
1000X000
1000X001
1000X011
1000X100
10000XXX
OR Mode
－
－
－
－
－
－
EXOR Mode
AND Mode
Text Attribute Mode
Internal Character Generator Mode
External Character Generator Mode
10001XXX
X: Invalid
The display mode is defined by this command. The display mode does not change until the next
command is sent. The logical OR, EXOR, AND of text or graphic display can be displayed.
In internal Character Generator mode, character codes 00h to 7Fh are assigned to the built-in
Character generator ROM. The character codes 80h to FFh are automatically assigned to the external
character generator RAM.
(Example)
Graphic
Text
“OR”
“AND”
“EXOR”
< Figure 6-7 >
Note: Attribute functions can only be applied to text display, since the attribute data is placed in the
graphic RAM area.
Attribute Function
The attribute operations are Reverse display, Character blink, bold and Inhibit. The attribute data is
written into the graphic area, which was defined by the Set Control word command. Only text display is
possible in Attribute Function mode; graphic display is automatically disabled. However, the Display
Mode command must be used to turn both Text and Graphic on that in order to for the Attribute
function available.
The attribute data for each character in the text area is written to the same address in the graphic area.
The Attribute function is defined as follows.
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