S6A0074 Datasheet, PDF (27/68 Pages) Samsung semiconductor – 34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0074
6-bit
S
p
a
c
e
CGROM
Characte
Font
(5-dot)
CGROM
8-bit
6-bit
CGRAM
Characte
Font
(6-dot)
CGRAM
8-bit
Figure 9. 6-dot Font Width CGROM/CGRAM
Cursor or Display Shift (RE = 0)
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
0
0
0
1
S/C
R/L
-
-
Without writing or reading of display data, shift right/left cursor position or display. This instruction is used to
correct or search display data (refer to Table 7). During 2-line mode display, cursor moves to the 2nd line after
40th digit of 1st line. When 4-line mode, cursor moves to the next line, only after every 20th digit of the current
line. Note that display shift is performed simultaneously in all the line enabled by DS1 - DS4 in the shift enable
instruction. When displayed data is shifted repeatedly, each line shifted individually. When display shift is
performed, the contents of address counter are not changed. During low power consumption mode, display shift
may not be performed normally.
Table 7. Shift Patterns According to S/C and R/L Bits
S/C
R/L
Operation
0
0
Shift cursor to the left, address counter is decreased by 1
0
1
Shift cursor to the right, address counter is increased by 1
1
0
Shift all the display to the left, cursor moves according to the display
1
1
Shift all the display to the right, cursor moves according to the display
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