Specifications

2–6 EPSON
SED1200 Series
Write Commands
SET CURSOR DIRECTION
Sets the way in which the cursor address register changes
as character data is written to the SED1200 by the CPU,
and hence the direction of cursor movement.
D = 0: Address register increment direction
D = 1: Address register decrement direction
CURSOR ADDRESS –1/+1
Adds one to, or subtracts one from, the current contents
of the cursor address register, and hence moves the
cursor.
D = 0: ADDRESS = ADDRESS + 1
D = 1: ADDRESS = ADDRESS – 1
CURSOR FONT SELECT
D = 0: Underline cursor
D = 1: All dots blinking
CURSOR BLINK ON/OFF
Controls flashing of the underline cursor.
D = 0: Flashing stopped
D = 1: Cursor flashing
DISPLAY ON/OFF
D = 0: Display Blanked
D = 1: Display on
Note: This command does not affect the contents of
the display data RAM.
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0000010D
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0000011D
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0000100D
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0000101D
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0000110D
CURSOR ON/OFF
Controls the display of the cursor.
D = 0: Cursor off.
D = 1: Cursor on.
SYSTEM RESET
Initializes the SED1200 to the following defaults.
1. CURSOR DIRECTION: Increment
2. CURSOR FONT: Underline
3. CURSOR BLINK: Off
4. DISPLAY: Off
5. CURSOR: Off
6. LINE SELECT: One line display
7.
CURSOR ADDRESS: Address 0 (Line 1, character 0)
Note: SYSTEM RESET does not affect the contents
of the display data RAM, or the CGRAM.
LINE SELECT
Selects the number of displayed lines, and hence the LCD
drive duty cycle.
D = 0: 1 line display (1/8 duty cycle)
D = 1: 2 line display (1/16 duty cycle)
Note: The number of lines which can be displayed
depends on the LCD panel used.
SET CURSOR ADDRESS
Presets the contents of the cursor address register, and
hence the position of the cursor.
L = 0: Line 1 select
L = 1: Line 2 select
P
5–P0: Position of character in selected line.
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0000111D
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
00010000
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
0001001D
A0 = 0
D7 D6 D5 D4 D3 D2 D1 D0
1LP5 P4 P3 P2 P1 P0