參數(shù)資料
型號: M37207MF-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64
封裝: 0.750 INCH, 1.78 MM PITCH, PLASTIC, DIP-64
文件頁數(shù): 90/121頁
文件大?。?/td> 1907K
代理商: M37207MF-XXXSP
MITSUBISHI MICROCOMPUTERS
M37207MF-XXXSP/FP, M37207M8-XXXSP
M37207EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
70
Fig. 66. Example of Raster Coloring
Fig. 67. CRT Control Register 2
(12) Raster Coloring Function
An entire screen (raster) can be colored by switching each of the R,
G, and B pins to MUTE output. R, G, B are controlled with the CRT
port control register; I is controlled with the CRT control register 2;
OUT is controlled with the character size register. 15 raster colors
can be obtained.
If the OUT pin has been set to raster coloring output, a raster color-
ing signal is always output during 1 horizontal scanning period. This
setting is necessary for erasing a background TV image.
If the R, G, and B pins have been set to MUTE signal output, a raster
coloring signal is output in the part except a no-raster colored char-
acter (in Figure 66, a character “O”) during 1 horizontal scanning
period. This ensures that character colors do not mix with the raster
color. In this case, MUTE signal is output from the OUT pin.
An example in which a magenta character “I” and a red character “O”
are displayed with blue raster coloring is shown in Figure 66.
A'
A
“RED”
“BLUE”
HSYNC
R
B
OUT
Signals
across
A – A'
b7 b6 b5 b4 b3 b2 b1 b0
CRT control register 2 (CBR) [Address 0208 16]
B
Name
Functions
After reset
R W
CRT Control Register 2
0
I signal output switch bit
(CBR0)
0: I signal output
1: MUTE signal output
0
1
I/TIM1 function switch bit
(CBR1)
0
RW
0
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are indeterminate.
R—
0: I output or MUTE output
1: 1/2 clock ouput of timer 1
2
to
7
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