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參數(shù)資料
| 型號(hào)： | OV7620 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | OV7620 SINGLE-CHIP CMOS VGA COLOR DIGITAL CAMERA |
| 中文描述： | OV7620的單芯片CMOS VGA彩色數(shù)碼相機(jī) |
| 文件頁(yè)數(shù)： | 35/60頁(yè) |
| 文件大?。?/td> | 313K |
| 代理商： | OV7620 |
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OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
35
Preliminary
Company Confidential
As shown above, HS<7:0> defines the starting pixel within a scan line, HE<7:0> defines the ending pixel
within a scan line. VS<7:0> defines the starting row within a field, VE<7:0> defines the ending
row within a field. VS/VE automatically defines the window height of a image frame. The rect-
angular window defined by HS/HE/VS/VE is the active image window. Only pixels insides this
window is valid, along with the
HREF
timing signals, black level substitutes the pixel data
when outside the active window.
Identical value for HS/HE or VS/VE is not permitted since it causes undefined window size.
If end point is lower than the starting point, the window begins from the starting point and ends at the far
end of the available image boundary.
The window size calculate formula is as below:
1. Horizontal size: VGA mode: Horizontal window size = (Register [18] - Register [17])*4.
QVGA mode: Horizontal window size = (Register [18] - Register [17])*2.
2. Vertical size: VGA mode: Vertical window size = (Register [1A]- Register [19]+1);
QVGA mode: Horizontal window size = (Register [1A] - Register [19]+ 1).
VS
VE
HS
HE
FULL image boundary
Active Window
FIG 1.11 Window Sizing
HREF
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