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MTV048 Datenblatt(PDF) 11 Page - List of Unclassifed Manufacturers |
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MTV048 Datenblatt(HTML) 11 Page - List of Unclassifed Manufacturers |
11 / 19 page MYSON TECHNOLOGY MTV048 (Rev 0.9) Rev 0.9 - 11 - 2001/03/15 3.11 Luminance & Border Generator There are 3 shift registers included in the design which can shift out of luminance and border dots to color encoder. The bordering and shadowing feature is configured in this block. For bordering effect, the character will be enveloped with blackedge on four sides. For shadowing effect, the character is enveloped with blackedge for right and bottom sides only. 3.12 Window and Frame Control The display frame position is completely controlled by the contents of VERTD and HORD. The window size and position control are specified in column 0 to 11 on row 15 of memory map, as shown in Figure 5. Window 1 has the highest priority, and window 4 is the least, when two windows are overlapping. More detailed information is described as follows: 1. Window control registers, ROW 15 b7 b6 b5 b4 b3 b2 b1 b0 Column 0,3,6 or 9 ROW START ADDR MSB LSB ROW END ADDR MSB LSB b7 b6 b5 b4 b3 b2 b1 b0 Column 1,4,7 or 10 COLUMN START ADDR MSB LSB WEN - WSHD b7 b6 b5 b4 b3 b2 b1 b0 Column 2,5,8 or 11 COLUMN END ADDR MSB LSB R G B START(END) ADDR - These addresses are used to specify the window size. It should be noted that when the start address is greater than the end address, the window would be disabled. WEN - Enable the relative background window display. WSHD - Enable shadowing on the relative window. R, G, B - Specify the color of the relative background window. 2. Frame control registers, ROW 15 b7 b6 b5 b4 b3 b2 b1 b0 Column 12 VERTD MSB LSB VERTD - Specify the starting position for vertical display. The total steps are 256, and the increment of each step is 4 Horizontal display lines. The initial value is 4 after power up. b7 b6 b5 b4 b3 b2 b1 b0 Column 13 HORD MSB LSB HORD - Define the starting position for horizontal display. The total steps are 256, and the increment of each step is 6 dots. The initial value is 15 after power up. |
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Ähnliche Beschreibung - MTV048 |
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