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參數(shù)資料
| 型號： | LC74725M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | On-Screen Display Controller LSI |
| 中文描述： | 屏幕顯示控制器芯片 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 260K |
| 代理商： | LC74725M |
No. 5213-10/16
LC74725, 74725M
z
COMMAND2 (Vertical display start position and vertical character size setup command)
First byte
Second byte
{
COMMAND3 (Horizontal display start position and horizontal character size setup command)
First byte
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
If VS is the vertical display start position then:
5
VS = H
×
(2
2
n
VP
n
)
H: the horizontal synchronization pulse period
5
VP5
(MSB)
0
1
4
VP4
0
1
3
VP3
0
1
2
VP2
0
1
1
VP1
0
1
0
VP0
(LSB)
0
1
The vertical display start position is set
by the 6 bits VP0 to VP5.
The weight of bit 1 is 2H.
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
0
Command 2 identification code
Set the vertical display start position and vertical character size.
5
—
1
4
—
0
3
—
0
2
VS20
0
1H per dot
Second line vertical character size
1
2H per dot
1
—
0
0
VS10
0
1H per dot
First line vertical character size
1
2H per dot
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
0
Command 3 identification code
Set the horizontal display start position and horizontal
character size.
5
—
1
4
—
1
3
EGP
0
Correction: off
Border specification when the horizontal
double character size is used
1
Correction: on
2
HS20
0
1 Tc per dot
Second line horizontal character size
1
2 Tc per dot
1
—
0
0
HS10
0
1 Tc per dot
First line horizontal character size
1
2 Tc per dot
相關PDF資料 |
PDF描述 |
|---|---|
| LC7472 | On-screen Video Display Controller for NTSC or PAL-M |
| LC7472M | On-screen Video Display Controller for NTSC or PAL-M |
| LC74730M | On-Screen Display Controller LSI |
| LC74731 | On-Screen Display Controller |
| LC74731W | On-Screen Display Controller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LC7472M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-screen Video Display Controller for NTSC or PAL-M |
| LC7472NM9048 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC7472NM9056 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC74730M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74731 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
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