參數(shù)資料
型號: LC74735W
元件分類: 畫面疊加
英文描述: ON-SCREEN DISPLAY IC, PQFP80
封裝: SQFP-80
文件頁數(shù): 16/50頁
文件大?。?/td> 258K
代理商: LC74735W
No. 7191-23/50
LC74735W
Command 30 (Main screen: vertical display start position setting command)
First byte
Second byte
DA0 to 7
Register
Content
Notes
State
Function
7
VPM7
0
(MSB)
1
The vertical display start position, VSM, is given by:
6
VPM6
0
1
5
VPM5
0
1
4
VPM4
0
1
3
VPM3
0
1
2
VPM2
0
1
VPM1
0
1
0
VPM0
0
(LSB)
1
7
VSM = 1H × ( ∑ 2 nVPMn)
n=0
HSYNC
HSM
VSM
Main screen display area
VSYNC
DA0 to 7
Register
Content
Notes
State
Function
7—
1
6—
0
Command 3 identification code
5—
1
Main screen: vertical display start position setting
4—
1
3—
0
2—
0
Extended command identification code 0
1—
0
0—
0
Main screen
The vertical display start position is specified by the
8 bits VPM7:0.
The weight of the LSB is 1H in QVGA mode, and
the weight of the LSB is 2H in WVGA mode
This setting applies in screen units.
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