M37281EKSP Datasheet, PDF (95/172 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
8.11.9 OUT1, OUT2 Signals
The OUT1, OUT2 signals are used to control the luminance of the
video signal. The output waveform of the OUT1, OUT2 signals is
controlled by bit 6 of the color code register i (refer to Figure 8.11.28),
bit 2 of the block control register i (refer to Figure 8.11.14) and RC17
of OSD RAM. The setting values for controlling OUT1, OUT2 and the
corresponding output waveform is shown in Figure 12.11.29.
Note: When OUT2 signal is output, set bit 6 of OSD port control register (refer
to Figure 8.11.56) to “1.”
A
A'
OUT1
signal
OUT2 output
control
(RC17 of
OSD RAM)
✕
Conditions
Border output
control bit (See
note 1)
(Bit 2 of block
control register i)
OUT1 control bit (See note 2)
(b6 of color pallet register i)
Background Character
Output
wave-
form
(between
A to A')
H
0
L
0
H
1
L
0
0
H
L
1
1
H
L
0
H
L
0
H
1
L
1
H
0
L
1
H
1
L
0
OUT2
signal
1
H
✕
✕
✕
L
H
✕
✕
✕
L
Notes 1: This control is only valid in the OSD mode. It is invalid in CC/CDOSD mode .
2: In the CDOSD mode, coloring is performed for each dot. Accordingly, OUT1 outputs to dots
which bit 6 (CRi6) of the color pallet register i is set to “0.”
3: OUT2 cannot be output in sprite OSD.
4: ✕ is an arbitrary value.
Fig. 8.11.29 Setting Value for Controlling OUT1, OUT2 and Corresponding Output Waveform
Rev.1.01 2003.07.16 page 95 of 170