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參數(shù)資料
| 型號(hào)： | LC74783M |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁(yè)數(shù)： | 15/15頁(yè) |
| 文件大小： | 181K |
| 代理商： | LC74783M |
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Second byte
Note: The register states are all set to zero when the LC74783/M is reset with the RST pin.
z COMMAND2 (Vertical display start position and vertical character size setup command)
First byte
Second byte
Note: The register states are all set to zero when the LC74783/M is reset with the RST pin.
No. 4990-9/15
LC74783, 74783M
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
0
6
c6
0
1
5
c5
0
1
4
c4
0
1
3
c3
0
Character code (00 to 7F hexadecimal)
1
2
c2
0
1
c1
0
1
0
c0
0
1
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
0
Second byte identification bit
6
FS
0
Crystal oscillator frequency: 2fsc
1
Crystal oscillator frequency: 4fsc
5
VP5
0
(MSB)
1
4
VP4
0
1
3
VP3
0
1
2
VP2
0
1
VP1
0
1
0
VP0
0
(LSB)
1
The vertical display start position is set
by the 6 bits VP0 to VP5.
The weight of bit 1 is 2H.
If VS is the vertical display start position then:
5
VS = H
× (2Σ 2nVP
n)
n = 0
H: the horizontal synchronization pulse period
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
0
Command 2 identification code
5
—
1
Set the vertical display start position and vertical character size.
4
—
0
3
VS21
0
1
Second line vertical character size
2
VS20
0
1
VS11
0
1
First line vertical character size
0
VS10
0
1
VS21
VS20
0
1
0
1H per dot
2H per dot
1
3H per dot
1H per dot
VS11
VS10
0
1
0
1H per dot
2H per dot
1
3H per dot
1H per dot
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| LC74783M | ON-SCREEN DISPLAY IC, PDSO24 |
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| LC74784 | ON-SCREEN DISPLAY IC, PDIP24 |
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| LC74784M | ON-SCREEN DISPLAY IC, PDSO24 |
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| LC74785 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74785M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
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