ACM1602B SERIES LCD MODULE
11.0 DISPLAY INSTRUCTION TABLE
COMMAND
R R/ DB DB DB DB
S W 7 6
5
4
DB
3
DB
2
DB DB
1
0
DESCRIPTION
Executing
time
fosc=250khz
1.64ms
1.64ms
Clear Display
Cursor at
Home
0
0
0 0
0 0
0
0
0
0
0
0
0
0
0
0
0
1
1
x
Clears Display & Returns to Address 0.
Returns Cursor to Address 0. Also
returns the display being shifted to the
original position. DDRAM contents
remain unchanged.
I/D: Set Cursor Moving Direction
I/D=1: Increment
I/D=0: Decrement
S: Specify Shift of Display
S=1: The display is shifted
S=0: The display is not shifted
Entry Mode
Set
0
0 0
0
0
0
0
1
I/D
S
40µs
Display
ON/OFF
Control
0
0 0
0
0
0
1
D
C
B
Display D=1: Display on
D=0: Display off
Cursor C=1: Cursor on
C=0: Cursor off
Brink
B=1: Brink on
B=0: Brink off
Moves cursor or shifts the display w/o
changing DD RAM contents
S/C=0: Cursor Shift (RAM unchanged)
S/C=1: Display Shift (RAM unchanged)
R/L=1: Shift to the Right
R/L=0: Shift to the Left
Sets data bus length (DL), # of display
lines (N), and character fonts (F).
DL=1: 8 bits
F=0: 5x7 dots
DL=0: 4 bits
F=1: 5x10 dots
N=0: 1 line display
N=1: 2 lines display
Sets CG RAM address. CG RAM data
is sent and received after this
instruction.
Sets DD RAM address. DD Ram data
is sent and received after this
instruction.
Reads Busy Flag (BF) and address
counter contents.
Writes data into DDRAM or CGRAM.
Reads data from DDRAM or CGRAM.
40µs
Cursor /
Display
Shift
0
0 0
0
0
1
S/C
R/L
x
x
40µs
Function
Set
0
0 0
0
1
DL
N
F
x
x
40µs
Set CG RAM
Address
0
0 0
1
Character Generator (CG) RAM
Address
40µs
Set DD RAM
Address
0
0 1
Display Data (DD) RAM Address /
Cursor Address
40µs
Busy Flag /
0
Address Read
Write Data
Read Data
x: Don't Care.
1
1
1 B
F
0
1
Address counter used for both DD &
CG RAM address
Write Data
Read Data
40µs
46µs
46µs
AZ DISPLAYS, INC.
09/17/99
8
AZDISPLAYS [ AZ DISPLAYS ]
