Specifications

SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 12232-10
PACIFIC DISPLAY DEVICES 04.25.2012 13
3. OPERATING PRINCIPALS AND METHODS
3.1 LCD Controller Display and Control Functions (SED-1520/ SBN1661G Controller)
Command
R/W
A0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Function
Display
ON/OFF
0
0
1
0
1
0
1
1
1
0/1
Switches the entire display ON or OFF,
regardless of the display RAM抯 data
or the internal status.
1 : ON , 0 : OFF
*1
Display Start
Line
0
0
1
1
0
Display Start Address
( 0 ~ 31 )
Determines the line of RAM data to be
displayed at the display抯 top line (
COM0 ).
Page Address
Set
0
0
1
0
1
1
1
0
Page
( 0 ~ 3 )
Sets the page of the Display RAM in
the Page Address register.
Column
Address Set
0
0
0
Column Address
( 0 ~ 79 )
Sets the column of the Display RAM in
the Column Address register.
Status Read
1
0
B
U
S
Y
A
D
C
O
N
/
O
F
F
R
E
S
E
T
0
0
0
0
Reads status.
BUSY
ADC
ON/OFF
RESET
0
1
0
1
0
1
0
1
: Ready
: Busy
: Leftward output
: Rightward output
: Display ON
: Display OFF
: Normal
: Reset
Write Display
Data
0
1
Display Data
Writes the data on the data bus to
Display RAM. These commands access
a previously-specified address of the
display RAM, after which the column
address is incremented by one.
Read Display
Data
1
1
Display Data
Reads the data from the Display RAM
onto the data bus. These commands
access a previously-specified address
of the display RAM, after which the
column address is incremented by one.
ADC Select
0
0
1
0
1
0
0
0
0
0/1
Used to reverse the correspondence
between the Display RAM抯 column
address and segment driver output
ports.
0 : Rightward output
1 : Leftward output
Static Drive
ON/OFF
0
0
1
0
1
0
0
1
0
0/1
Selects normal display operation or
static all-lit drive display operation.
0 : Normal display operation
1 : Static drive ( Power save ) *1
Duty Select
0
0
1
0
1
0
1
0
0
0/1
Select LCD duty cycle.
1: 1/32 , 0: 1/16
Read Modify
Write
0
0
1
1
1
0
0
0
0
0
Increments the column address counter
by one only when display data is
written but not when it is read.
End
0
0
1
1
1
0
1
1
1
0
Cancels the Ready Modify Write mode.
Reset
0
0
1
1
1
0
0
0
1
0
Resets the Display Start Line to the 1st
line in the register. Resets the column
address counter to 0 and page address
register to 3.
*1. Power Save Mode is entered by selecting static drive in the Display OFF status.