參數(shù)資料
型號： M37210M3-908SP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
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)： 22/59頁
文件大小： 764K
代理商： M37210M3-908SP
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
22
12 dots
16 dots
Functions
18 characters
2 lines
12
16 dots (refer to Figure 19)
96
3 kinds
1 screen : 4 kinds
A character
Possible (multiline display)
Possible (maximum 7 kinds)
CRT DISPLAY FUNCTIONS
(1) Outline of CRT Display Functions
Table 4 outlines the CRT display functions of the M37210M3-XXXSP.
The M37210M3-XXXSP incorporates a 18 columns
2 lines CRT
display control circuit. CRT display is controlled by the CRT display
control register.
Up to 96 kinds of characters can be displayed, and colors can be
specified for each character. Four colors can be displayed on one
screen. A combination of up to 7 colors can be obtained by using
each output signal (R, G and B).
Characters are displayed in a 12
16 dot configuration to obtain
smooth character patterns (refer to Figure 19).
The following shows the procedure how to display characters on the
CRT screen.
Fig. 19 CRT display character configuration
Fig. 20 Structure of CRT control register
Set the character to be displayed in display RAM.
Set the display color by using the color register.
Specify the color register in which the display color is set by us-
ing the display RAM.
Specify the vertical position and character size by using the verti-
cal position register and the character size register.
Specify the horizontal position by using the horizontal position
register.
Write the display enable bit to the designated block display flag of
the CRT control register. When this is done, the CRT starts op-
eration according to the input of the V
SYNC
signal.
The CRT display circuit has an extended display mode.
This mode allows multiple lines (more than 3 lines) to be displayed
on the screen by interrupting the display each time one line is dis-
played and rewriting data in the block for which display is terminated
by software.
Figure 21 shows a block diagram of the CRT display control circuit.
Figure 20 shows the structure of the CRT display control register.
Table 4. Outline of CRT display functions
Parameter
Number of display
character
Character
configuration
Kinds of character
Character size
Kinds of color
Coloring unit
Color
Display expansion
Raster coloring
Note :
Display is controlled by logical product (AND) between the all-
blocks display control bit and each block display control bit
7
0
CRT control register
(CC : address 00EA
16
)
Display of all blocks control bit
(Note)
0 : Display of all blocks off
1 : Display of all blocks on
Display of block 1 control bit
0 : Display of block 1 off
1 : Display of block 1 on
Display of block 2 control bit
0 : Display of block 2 off
1 : Display of block 2 on
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