User`s manual

101
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
M37281MAH–XXXSP,M37281MFH–XXXSP
M37281MKH–XXXSP,M37281EKSP
0
OFF
1
•Character
display area
0
OFF
1
•Character
display area
0
OFF
1
•Solid space
•Character
display area
0
OFF
1
•Character
display area
Bit 4 of OSD Control Register 1
Bit 3 of OSD Control Register 2
RC17 of OSD RAM
OUT1 Output Signal
OUT2 Output Signal
8.11.11 Automatic Solid Space Function
This function generates automatically the solid space (OUT1 or OUT2
blank output) of the character area in the CC mode.
The solid space is output in the following area :
• Any character area except character code “00916 ”
• Character area on the left and right sides of the above character
This function is turned on and off by bit 4 of the OSD control register
1 (refer to Figure 8.11.3).
And the OUT1 output or OUT2 output can be selected by bit 3 of
OSD control register 2.
Table 8.11.8 Setting for Automatic Solid Space
0 1
Fig. 8.11.36 Display Screen Example of Automatic Solid Space
Note: When selecting OUT1 as solid space output, character background color
with solid space output is fixed to color pallet 8 (black) regardless of
setting.
0
•Character font area
•Character background area
1
•Character font area
•Character background area
0
•Solid space area
1
• Character font area
•Character background area
005 16 009 16 009 16 009 16 006 16 006 16 006 16
• • •
• • •
When setting the character code “00516” as the character A, “00616” as the character B.
(OSD RAM)
(Display screen)
2nd
character
No blank
output
32nd
character
1st
character