M37221 Mitsubishi, M37221 Datasheet - Page 45

• Manufacturer Part Number: M37221
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

(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 00E5
border selection register. Table 14 shows the relationship between
the values set in the border selection register and the character bor-
der function.
Fig. 47. Structure of border selection register
Table 14. Relationship between set value in border selection register and character border function
7
Border selection register
MDn0
0
1
16
). Figure 47 shows the structure of the
0
Border selection register
(MD : address 00E5
Block 1 OUT1 output border
selection bit
Block 2 OUT1 output border
selection bit
0 : Same output as R, G, B
1 : Border output
0 : Same output as R, G, B
1 : Border output
is output
is output
Border including character
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
16
Functions
Ordinary
)
M37221EF-XXXSP,M37221EFSP
Fig. 48. Example of border
with ON-SCREEN DISPLAY CONTROLLER
R, G, B output
OUT output
R, G, B output
OUT output
Example of output
45