SED1278D EPSON [Epson Company], SED1278D Datasheet - Page 4

• Manufacturer Part Number: SED1278D
• Description: Dot Matrix LCD Controller Driver
• Manufacturer: EPSON [Epson Company]

4
DISPLAY COMMAND
CLEAR DISPLAY
CURSOR HOME
ENTRY MODE SET
DISPLAY ON/OFF
CURSOR/DISPLAY SHIFT
SYSTEM SET
SET CGRAM ADDRESS
SET DDRAM ADDRESS
READ BUSY FLUG/
WRITE DATA
READ DATA
Timing Chart
Read Cycle
Write Cycle
Don't care
ADDRESS COUNTER
Parameter
RS
R W
E
DB0 to DB7
RS
R W
E
DB0 to DB7
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
0
1
BF
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
1
V
V
Read Data
Write Data
V
V
V
V
V
IL1
t
V
IL1
t
fE
fE
IH1
IL1
IH1
IL1
t
t
IH1
IL1
DL
AS
AS
0
0
0
0
1
AC
S/C
N
A
0
0
0
1
V
V
V
V
DD
V
V
IH1
OH1
IH1
OL1
A
IH1
IL1
CG
t
R/L
RD
D
F
t
t
0
0
1
WEH
WEH
I/D
t
DS
C
0
1
V
V
Significant
Significant
IH1
IH1
t
t
cycE
cycE
Data
Data
I/D
C
1
1
V
V
V
V
t
DHR
t
t
t
t
t
V
V
t
t
IH1
IL1
AH
AH
IH1
IL1
AH
AH
DH
fE
fE
DB1 = 1 : Increment, DB1 = 0 : Decrement
DB0 = 1 : The display is shifted.
DB0 = 0 : The display is not shifted.
DB2 = 1 : Display on
DB1 = 1 : Cursor on
DB0 = 1 : Brinking on
DB3 = 1 : Shifts display one character
DB2 = 1 : Right shift, DB2 = 0 : Left shift
DB4 = 1 : 8 bits, DB4 = 0 : 4 bits
DB3 = 1 : 2 lines display (1/16 duty),
DB3 = 0 : 1 line display
The address length that can be set is 64 addresses.
The address length that can be set is 80 addresses.
DB7 = 1 : Busy (instruction not accepted)
DB7 = 0 : Ready (instruction accepted)
IL1
IL1
DB2 = 1 : 5 10 dots, 1/11 duty
DB2 = 0 : 5 7 dots, 1/8 duty
V
V
V
V
V
V
IH1
IL1
OH1
OL1
IH1
IL1
V
V
Note
IL1
IL1
SED1278F/D
DB1 = 0 : Cursor off
DB2 = 0 : Display off
DB0 = 0 : Brinking off