M37221M6_03 Datasheet, PDF (43/62 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37221M6-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
(6) Character Border Function
An border of 1 clock (1 dot) equivalent size can be added to a char-
acter to be displayed in both horizontal and vertical directions. The
border is output from the OUT pin. In this case, set bit 5 of a color
register to “0” (character is output).
Border can be specified in units of block by using the border selec-
tion register (address 00E516). Figure 43 shows the structure of the
border selection register. Table 13 shows the relationship between
the values set in the border selection register and the character bor-
der function.
7
0
Border selection register
(MD : address 00E516)
Block 1 OUT1 output border
selection bit
0 : Same output as R, G, B
is output
1 : Border output
Block 2 OUT1 output border
selection bit
0 : Same output as R, G, B
is output
1 : Border output
Fig. 43. Structure of border selection register
Fig. 44. Example of border
Table 13. Relationship between set value in border selection register and character border function
Border selection register
MDn0
Functions
Example of output
0
Ordinary
R, G, B output
OUT1 output
1
Border including character
R, G, B output
OUT1 output
42