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KS0073 Datasheet(PDF) 44 Page - Samsung semiconductor |
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KS0073 Datasheet(HTML) 44 Page - Samsung semiconductor |
44 / 78 page S6A0073 34COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 44 7) Scroll Enable (RE = 1) RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 1 HS4 HS3 HS2 HS1 HS : Horizontal Scroll per Line Enable This instruction makes valid dot shift by a display line unit. HS1, HS2, HS3 and HS4 indicate each line to be dot scrolled, and each scroll is performed individually in each line. If the line in 1-line display mode or the 1st line in 2-line display mode is to be scrolled, set HS1 and HS2 to "high". If the 2nd line scroll is needed in 2-line mode, set HS3 and HS4 to "high". (Refer to table 8) 8) 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) - - 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. Hence, DL is a signal to select 8-bit or 4-bit bus mode. When 4-bit bus mode, it is required to transfer 4-bit data twice. 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". |
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