ks0074 Samsung Semiconductor, Inc., ks0074 Datasheet - Page 39

• Manufacturer Part Number: ks0074
• Description: 34com/80seg Driver & Controller For Dot Matrix Lcd
• Manufacturer: Samsung Semiconductor, Inc.

KS0074
7) Scroll Enable (RE = 1)
HS : Horizontal Scroll per Line Enable
8) Function Set
? (RE = 0)
DL : Interface data length control bit
N : Display line number control bit
RE : Extended function registers enable bit
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)
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 is required to transfer 4-bit data twice.
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.
At this instruction, RE must be "Low".















34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD