ks0074 Samsung Semiconductor, Inc., ks0074 Datasheet - Page 40

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

KS0074
 (RE = 1)
DL : Interface data length control bit
N : Display line number control bit
RE : Extended function registers enable bit
BE : CGRAM/SEGRAM data blink enable bit
9) Set CGRAM Address (RE = 0)
Set CGRAM address to AC.
This instruction makes CGRAM data available from MPU.
10) Set SEGRAM Address (RE = 1)
Set SEGRAM address to AC.
This instruction makes SEGRAM data available from MPU.
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.
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, 4-line mode independent of N bit.
When RE = "High", extended function set registers, SEGRAM address set registers, HS bits
of scroll enable instruction and BE bits of function set register can be accessed.
If BE is "High", makes user font of CGRAM and segment of SEGRAM blinking. The quantity
of blink is assigned the highest 2 bit of CGRAM/SEGRAM.





























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




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