參數(shù)資料
型號： M37210M3-800SP
廠商： Mitsubishi Electric Corporation
英文描述： TRANS PREBIASED PNP 200MW SOT-23
中文描述： 單芯片8位CMOS微機(jī)電壓合成與屏幕顯示控制器
文件頁數(shù)： 31/59頁
文件大小： 764K
代理商： M37210M3-800SP
MITSUBISHI MICROCOMPUTERS
M37210M3-XXXSP/FP, M37210M4-XXXSP, M37211M2-XXXSP
M37210E4-XXXSP/FP, M37210E4SP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
31
(5) Color Registers
The color of a displayed character can be specified by setting the
color to one of the four color registers (CO0 to CO3 : addresses
00E6
16
to 00E9
16
) and then specifying that color register with the
CRT display RAM.
There are three color outputs : R, G and B. By using a combination
of these outputs, it is possible to set 2
3
-1 (when no output) = 7 col-
ors. However, because only four color registers are available, up to
four colors can be displayed at one time.
R, G and B outputs are set by using bits 1 to 3 in the color register.
Bit 5 is used to specify whether a character output or blank output.
Figure 29 shows the structure of the color register.
(6) Multiline Display
The M37210M3-XXXSP can normally display two lines on the CRT
screen by displaying two blocks at different vertical positions.
In addition, it allows up to 16 lines to be displayed by using a CRT
interrupt.
The CRT interrupt works in such a way that when display of one
block is terminated, an interrupt request is generated.
In other words, character display for a certain block is initiated when
the scanning line reaches the display position for that block (speci-
fied with vertical position register) and when the range of that block
is exceeded, an interrupt is applied.
Note :
A CRT interrupt does occurs at the end of display regardless
of display on or off. In other words, even if a block is set to off
display with the display control bit of the CRT control register
(address 00EA
16
), a CRT interrupt request occurs (refer to
Figure 30).
Fig. 29 Structure of color registers
Note : When the character bordering function is used, the contents
of this bit (bit 5) are invalied, and the OUT pin output be-
comes a border output.
Color registers 0,1,2,3
(CO0 : address 00E6
16
)
(CO1 : address 00E7
16
)
(CO2 : address 00E8
16
)
(CO3 : address 00E9
16
)
B signal output selection bit
0 : No character is output
1 : Character is output
7
0
OUT signal output selection bit
(Note)
0 : OUT pin outputs character
1 : OUT pin outputs blank
G signal output selection bit
0 : No character is output
1 : Character is output
R signal output selection bit
0 : No character is output
1 : Character is output
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