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UPD161622 Datenblatt(PDF) 22 Page - NEC |
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UPD161622 Datenblatt(HTML) 22 Page - NEC |
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22 / 103 page ![]() Data Sheet S15649EJ2V0DS 22 µ PD161622 Table 5 −6. Data Access Control Register (R5) Setting INC Setting 0 The address is successively incremented or decremented in the X direction when data is accessed. 1 The address is successively incremented or decremented in the Y direction when data is accessed. XDIR Setting 0 Increments the X address (+1) when data is accessed. 1 Decrements the X address ( −1) when data is accessed. YDIR Setting 0 Increments the Y address (+1) when data is accessed. 1 Decrements the Y address ( −1) when data is accessed. Table 5 −7. Combination of INC, XDIR, and YDIR, and Address Direction INC XDIR YDIR Image of Address Scanning 0 0 A-1 0 1 A-2 1 0 A-3 0 1 1 A-4 0 0 B-1 0 1 B-2 1 0 B-3 1 1 1 B-4 Caution If the access direction is changed by using INC, XDIR, or YDIR, be sure to set the X address register (R6) and Y address register (R7) before accessing the display RAM. |
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