ks0074 Samsung Semiconductor, Inc., ks0074 Datasheet - Page 32

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

KS0074
12) Set DDRAM Address (RE = 0)
Set DDRAM address to AC.
13) Set Scroll Quantity (RE = 1)
Setting SQ5 to SQ0, horizontal scroll quantity can be controlled in dot units. (Refer to Table 9).
In this case of KS0074 can show hidden areas of DDRAM by executing smooth scroll
from 1 to 48 dots.
Table 9. Scroll quantity according to HDS bits
This instruction makes DDRAM data available from MPU.
In 1-line display mode (N = 0, NW = 0), DDRAM address is from "00H" to "4FH".
In 2-line display mode (N = 1, NW = 0), DDRAM address in the 1st line is from "00H" to "27H",
and DDRAM address in the 2nd line is from "40H" to "67H".
In 4-line display mode (NW = 1), DDRAM address is from "00H" to "13H" in the 1st line, from
"20H" to "33H" in the 2nd line, from "40H" to "53H" in the 3rd line and from "60H" to "73H"
in the 4th line.
SQ5
0
0
0
0
1
1
:






SQ4
0
0
0
0
0
1
:





SQ3

#
X
0
0
0
0
1
:


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

SQ2
0
0
0
0
1
X
:
#



#

SQ1
0
0
1
1
1
X
:

#



#

SQ0
X
0
1
0
1
1
:

#
shift left by 47-dot
shift left by 48-dot
shift left by 1-dot
shift left by 2-dot
shift left by 3-dot
Function
No shift
: