M37281EKSP Datasheet, PDF (101/172 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M37281MAH–XXXSP,M37281MFH–XXXSP,M37281MKH–XXXSP, M37281EKSP
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.
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.
Table 8.11.8 Setting for Automatic Solid Space
Bit 4 of OSD Control Register 1
0
Bit 3 of OSD Control Register 2
0
1
RC17 of OSD RAM
0
1
0
1
OUT1 Output Signal
•Character font area
•Character font area
•Character background area •Character background area
OUT2 Output Signal
OFF
•Character
display area
OFF
•Character
display area
1
0
0
1
1
0
1
•Solid space area
•Character font area
•Character background area
OFF
•Character
display area
OFF
•Solid space
•Character
display area
When setting the character code “00516” as the character A, “00616” as the character B.
(OSD RAM)
00516 00916 00916 00916 00616 00616 _{• • •} 00616
(Display screen)
1st
2nd
character character
No blank
output
Fig. 8.11.36 Display Screen Example of Automatic Solid Space
Rev.1.01 2003.07.16 page 101 of 170
•••
32nd
character