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S1D13706F00A Datasheet(PDF) 62 Page - Epson Company |
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S1D13706F00A Datasheet(HTML) 62 Page - Epson Company |
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62 / 94 page  56 EPSON S1D13305 Series Technical Manual 10.3. Setting the Character Generator Address calculated from SAG + character code + ROW select address. This mapping is shown in Table 21 and 22. Table 21. Character fonts, number of lines ≤ 8 (M2 = 0, M1 = 0) Table 22. Character fonts, 9 ≤ number of lines ≤ 16 (M2 = 1, M1 = 0) SAG A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 Character code 0000 D7 D6 D5 D4 D3 D2 D1 D0 0000 +ROW select address 000000000000 R3 R2 R1 R0 CG RAM address VA15 VA14 VA13 VA12 VA11 VA10 VA9 VA8 VA7 VA6 VA5 VA4 VA3 VA2 VA1 VA0 SAG A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 Character code 00000 D7 D6 D5 D4 D3 D2 D1 D0 000 +ROW select address 0000000000000 R2 R1 R0 CG RAM address VA15 VA14 VA13 VA12 VA11 VA10 VA9 VA8 VA7 VA6 VA5 VA4 VA3 VA2 VA1 VA0 Figure 45. Row select address 10.3.1. M1 = 1 The S1D13305 series automatically converts all bits set in bit 6 of character code for CG RAM 2 to zero. Because of this, the CG RAM data areas become contiguous in display memory. Row Row 0 Row 1 Row 2 Row 7 Row 8 Row 14 Row 15 R3 0 0 0 0 1 1 1 R2 0 0 0 1 0 1 1 R1 0 0 1 1 0 1 1 R0 0 1 0 1 0 0 1 Line 1 Line 2 Note: Lines = 1: lines in the character bitmap ≤ 8 Lines = 2: lines in the character bitmap ≥ 9 The CG RAM addresses in the VRAM address space are not mapped directly from the address in the SAG register. The data to be displayed is at a CG RAM address When writing data to CG RAM: • Calculate the address as for M1 = 0. • Change bit 6 of the character code from “1” to “0”. CHARACTER GENERATOR |
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