參數(shù)資料
型號(hào)： LC74788JM
元件分類(lèi)： 畫(huà)面疊加
英文描述： ON-SCREEN DISPLAY IC, PDSO24
封裝： 0.300 INCH, PLASTIC, MFP-24
文件頁(yè)數(shù)： 3/23頁(yè)
文件大?。?/td> 210K
代理商： LC74788JM
No. 5731-11/23
LC74788, 74788M, 74788JM
COMMAND2: Vertical display start position and vertical character size setup command
First byte
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
1
6
—
0
Command 2 identification code
5
—
1
Sets the vertical display start position and the 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
VS20
0
1
VS21
0
1H/dot
2H/dot
1
3H/dot
1H/dot
The vertical display start position is set by the 6 bits
VP0 to VP5.
The weight of bit 1 is 2H.
Second byte
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
0
Second byte identification bit
6
FS
0
Crystal oscillator frequency: 2fsc
1
Crystal oscillator frequency: 4fsc
5
VP5
0
If VS is the vertical display start position then:
(MSB)
1
VS =
α + H × (2Σ 2n VPn)
4
VP4
0
H: the horizontal synchronization pulse period
1
α = 20 H (in 525-line systems)
3
VP3
0
= 25 H (in 625-line systems)
1
2
VP2
0
1
VP1
0
1
0
VP0
0
(LSB)
1
Note: All registers are set to 0 when the LC74788/M/JM is reset by the RST pin.
5
n=0
VS10
0
1
VS11
0
1H/dot
2H/dot
1
3H/dot
1H/dot
Character
display area
相關(guān)PDF資料
PDF描述
LC74788JM ON-SCREEN DISPLAY IC, PDSO24
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LC74788N 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:
LC74789 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:On-Screen Display Controller
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LC74789JM 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:On-Screen Display Controller
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