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S1D13706F00A Datasheet(PDF) 30 Page - Epson Company |
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S1D13706F00A Datasheet(HTML) 30 Page - Epson Company |
30 / 94 page ![]() 24 EPSON S1D13305 Series Technical Manual The IV flag causes the S1D13305 series to offset the text screen against the graphics back layer by one vertical pixel. Use the horizontal pixel scroll function (HDOT SCR) to shift the text screen 1 to 7 pixels to the right. All characters will then have the necessary surrounding back- ground pixels that ensure easy reading of the inverted characters. See Section 10.5 for information on scrolling. IV = 0: Screen top-line correction IV = 1: No screen top-line correction Figure 5. IV and HDOT SCR adjustment 8.2.1.7. FX Define the horizontal character size. The character width in pixels is equal to FX + 1, where FX can range from 00 to 07H inclusive. If data bit 3 is set (FX is in the range 08 to 0FH) and an 8-pixel font is used, a space is inserted between characters. Table 3. Horizontal character size selection IV 1 dot Dots 1 to 7 Display start point Back layer HDOT SCR Character Since the S1D13305 series handles display data in 8-bit units, characters larger than 8 pixels wide must be formed from 8-pixel segments. As Figure 6 shows, the remainder of the second eight bits are not displayed. This also applies to the second screen layer. In graphics mode, the normal character field is also eight pixels. If a wider character field is used, any remainder in the second eight bits is not displayed. FX [FX] character width HEX D3 D2 D1 D0 (pixels) 00 0000 1 01 0001 2 ↓ ↓↓↓↓ ↓ 07 0111 8 Figure 6. FX and FY display addresses 8 bits FY FX 8 bits FY FX Non-display area Address B Address A 8 bits 8 bits INSTRUCTION SET |
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