參數(shù)資料
型號: M37220M3-010SP
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): 26/53頁
文件大?。?/td> 1281K
代理商: M37220M3-010SP
MITSUBISHI MICROCOMPUTERS
M37220M3-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
26
7
CRT control register
(CC: address 00EA
16
)
All-blocks display control bit (Note)
0 : All-blocks display off
1 : All-blocks display on
Block 1 display control bit
0 : Block 1 display off
1 : Block 1 display on
Block 2 display control bit
0 : Block 2 display off
1 : Block 2 display on
Note:
Display is controlled by logical product (AND)
between the all-blocks diplay control bit and
each block display control bit.
CRT DISPLAY FUNCTIONS
(1) Outline of CRT Display Functions
Table 5 outlines the CRT display functions of the M37220M3-XXXSP.
The M37220M3-XXXSP incorporates a CRT display control circuit of
20 characters
2 lines. CRT display is controlled by the CRT con-
trol register. Up to 128 kinds of characters can be displayed. The
colors can be specified for each character and up to 4 kinds of 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 dots configuration to obtain
smooth character patterns (refer to Figure 23).
The following shows the procedure how to display characters on the
CRT screen.
Write the display character code in the display RAM.
Specify the display color by using the color register.
Write the color register in which the display color is set in the dis-
play RAM.
Specify the vertical position by using the vertical position register.
Specify the character size by using 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 display starts
according to the input of the V
SYNC
signal.
The CRT display circuit has an extended display mode. This mode
allows multiple lines (3 lines or more) to be displayed on the screen
by interrupting the display each time one line is displayed and rewrit-
ing data in the block for which display is terminated by software.
Figure 24 shows the structure of the CRT display control register.
Figure 25 shows the block diagram of the CRT display control circuit.
Functions
24 characters
2 lines
12
16 dots (refer to Figure 23)
128 kinds
3 kinds
1 screen: 4 kinds, maximum 7 kinds
A character
Possible (multiline display)
Possible (maximum 7 kinds)
Parameter
Number of display
characters
Dot structure
Kinds of characters
Kinds of character sizes
Color
Display expansion
Raster coloring
Table 5. Outline of CRT display functions
Fig. 23. CRT display character configuration
Fig. 24. Structure of CRT control register
12 dots
16 dots
Kinds of colors
Coloring unit
0
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參數(shù)描述
M37220M3-155SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37220M3-157SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37220M3-160SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37220M3-167SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37220M3-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER