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KS0073 Datasheet(PDF) 34 Page - Samsung semiconductor |
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KS0073 Datasheet(HTML) 34 Page - Samsung semiconductor |
34 / 78 page S6A0073 34COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 34 9) Function Set (1) RE = 0 RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 1 DL N RE(0) DH REV DL : Interface data length control bit When DL = "High", it means 8-bit bus mode with MPU. When DL = "Low", it means 4-bit bus mode with MPU. So to speak, DL is a signal to select 8-bit or 4-bit bus mode. In 4-bit bus mode, it needs to transfer 4-bit data by two times. N : Display line number control bit It is variable only when NW bit of extended function set instruction is Low. When N = "Low", 1-line display mode is set. When N = "High", 2-line display mode is set. When NW = "High", N bit is invalid, it means 4-line mode independent of N bit. RE : Extended function registers enable bit At this instruction, RE must be "Low". DH : Display shift enable selection bit. When DH = "High", enables display shift per line. When DH = "Low", enables smooth dot scroll. This bit can be accessed only when IE pin input is "High". REV : Reverse enable bit When REV = "High", all the display data are reversed. i.e., all the white dots become black and black dots become white. When REV = "Low", the display mode set normal display. |
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