ks0074 Samsung Semiconductor, Inc., ks0074 Datasheet - Page 30
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ks0074
Manufacturer Part Number
ks0074
Description
34com/80seg Driver & Controller For Dot Matrix Lcd
Manufacturer
Samsung Semiconductor, Inc.
Datasheet
1.KS0074.pdf
(70 pages)
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KS0074
9) Function Set
? (RE = 0)
DL : Interface data length control bit
N : Display line number control bit
RE : Extended function registers enable bit
DH : Display shift enable selection bit.
REV : Reverse enable 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.
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", it means 1-line display mode.
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".
When DH = "High", enable display shift per line.
When DH = "Low", enable smooth dot scroll.
This bit can be accessed only when IE pin input is "High".
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.
34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
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