參數(shù)資料
型號: M35060
廠商: Mitsubishi Electric Corporation
英文描述: Character Pattern Display Control IC(字符點陣顯示控制芯片)
中文描述: 字符模式顯示控制IC(字符點陣顯示控制芯片)
文件頁數(shù): 19/42頁
文件大小: 260K
代理商: M35060
MITSUBISHI MICROCOMPUTERS
M35060-XXXSP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
19
5. Scroll display mode
The scroll display mode is entered by setting registers SBIT0 to 3
(SA), SLIN0 to 4 (SB), SST0 to 4 (SC), and SEND0 to 4 (SD) (all at
address 2AE
16
). (Scroll is turned off when SD = 0.)
The screen is scrolled in the range from the (SC)’th line to the
(SD-1)’th line, and sections above and below this range are fixed.
The beginning line and beginning dot of scroll are the (SA)’th dot on
the (SB)’th line.
The screen can be scrolled up or down by successively incrementing
or decrementing SA and SB.
Figure 6 shows examples of how the display is scrolled. The scroll
range in these examples contains 12 lines (second to the 13th lines).
However, the screen can display only 11 lines at a time, and the re-
maining one line is handled as a dummy line and not displayed.
Fig. 6 Scrolling example
When displayed in order of SA = 0, 1, 2, and so on, the screen scrolls up. When displayed in order of SA = 12, 11, 10, and so on, the
screen scrolls down.
(1) To scroll the screen up, write the dummy line after you set the 0th dot in SA but before setting the 1st dot.
(2) To scroll the screen down, write the dummy line after you set the 0th dot in SA but before setting the 12th dot of the preceding line.
Setting example 2
SA = 3
SB = 5
SC = 2
SD = 14
Setting example 1
SA = 0
SB = 2
SC = 2
SD = 14
Line number when
on screen display
Line number when
on screen display
Dummy line
5th line (0 dot to 2 dots)
or
4th line (3 dots to 12 dots)
Zero line
1st line
3rd
4th line
5th line
6th line
7th line
8th line
9th line
10th line
11th line
12th line (0 dot to 12 dots)
14th line
15th line
16th line
< fixed block >
< fixed block >
< Scrolling block >
2nd line (0 dot to 12 dots)
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
0
1
13
14
15
Dummy line
13th line (0 dot to 12 dots)
Zero line
1st line
6th line
7th line
8th line
9th line
10th line
11th line
12th line
13th line
2nd line
14th line
15th line
16th line
<
fixed block
>
<
Scrolling block
>
5th line (3 dots to 12 dots)
<
fixed block
>
4th line (0 dot to 2 dots)
3rd line
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