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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ADE3700 Fiches technique(PDF) 55 Page - STMicroelectronics |
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ADE3700 Fiches technique(HTML) 55 Page - STMicroelectronics |
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55 / 89 page  55/89 ADE3700 Pattern Generator When the programmed block size is such that the complete 8x8 grid is smaller than the total screen area, the part of the screen area which is outside the 8x8 grid is forced to black. 2.13.2 Pattern Engine In order to display two patterns simultaneously on the LCD screen, the Pattern Generator has two pattern display engines. Each engine can display horizontal or vertical bicolor stripes, bicolor checkers, color bars, gray scales or color scales. It is also possible to select the video stream from the scaler as a pattern. The pattern engine displays a bi-directional x-y symmetric pattern. Two 24-bit colors, C0 and C1, are alternately displayed with a horizontal period of Width and vertical period of Height. Programming a large Width and a small Height generates horizontal bars whereas the opposite will generate vertical bars. Programming small numbers for Width and Height generates checker patterns. Each of the two patterns is also given X and Y offset attributes, so that it is possible to center the pattern inside the grid blocks. A gradient effect can be applied independently on each of the two patterns, to either or both horizontal and vertical directions. The gradient effect takes two parameters: STEP and DELTA that define a ramp. 2.13.3 Borders The Border Generator adds a single pixel width border to the whole display area. Each of the four sides of the display can be one of 8 independent colors. Figure 7: Pattern Generator (Screen Split) Table 19: PGEN Registers (Sheet 1 of 5) Register Name Addr Mode Bits Default Description PGEN_PGEN_ENAB 0x0600 [7:1] Reserved R/W [0] 0x0 0 = disable PGEN block 1 = enable PGEN block PGEN_GRID0 0x0601 R/W [7:0] 0x0 Grid Row 0 PGEN_GRID1 0x0602 R/W [7:0] 0x0 Grid Row 1 PGEN_GRID2 0x0603 R/W [7:0] 0x0 Grid Row 2 |
Numéro de pièce similaire - ADE3700 |
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Description similaire - ADE3700 |
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