
UC1682
80x104RGB CSTN Controller-Driver
Revision 0.6
47
S
AMPLE
P
OWER
M
ANAGEMENT
C
OMMAND
S
EQUENCES
The following tables are examples of command sequence for power-up, power-down and display ON/OFF
operations. These are only to demonstrate some “
typical, generic
” scenarios. Designers are encouraged to
study related sections of the datasheet and find out what the best parameters and control sequences are for
their specific design needs.
C/D
The type of the interface cycle. It can be either Command (0) or Data (1)
W/R
The direction of dataflow of the cycle. It can be either Write (0) or Read (1).
Type
Required: These items are required
Customer: These items are not necessary if customer parameters are the same as default
Advanced: We recommend new users to skip these commands and use default values.
Optional: These commands depend on what users want to do.
P
OWER
-U
P
Type C/D W/R D7 D6 D5 D4 D3 D2 D1 D0
R
–
–
–
–
R
0
0
0
0
0
Chip action
Comments
–
1
0
–
1
0
–
1
0
–
0
0
–
0
0
–
0
0
Automatic Power-ON Reset.
(37) Set OTP operation
Control.
(Double-type Command)
(5) Set Temp. Compensation
(20) Set LCD Mapping
(15) Set Line Rate
(22) Set Color Mode
(26) Set LCD Bias Ratio
Wait 5~10ms after V
DD
is ON
0
1
0
Ignore OTP value
C
C
A
C
C
0
0
0
0
0
0
0
1
.
.
1
0
0
0
0
0
0
0
0
0
.
.
0
0
0
1
1
1
1
1
#
#
.
.
#
1
0
1
0
1
1
0
#
#
.
.
#
0
1
0
1
0
1
0
#
#
.
.
#
1
0
0
0
1
0
0
#
#
.
.
#
0
0
0
0
0
1
0
#
#
.
.
#
1
1
#
0
1
0
0
#
#
.
.
#
1
#
#
#
#
#
0
#
#
.
.
#
1
#
#
#
#
#
1
#
#
.
.
#
1
Set up LCD format specific
parameters, MX, MY, etc.
Fine tune for power, flicker,
contrast, and shading.
R
(11) Set V
BIAS
Potentiometer
LCD specific operating
voltage setting
O
Write display RAM
Set up display image
R
(18) Set Display Enable
P
OWER
-D
OWN
Type C/D W/R D7 D6 D5 D4 D3 D2 D1 D0
R
0
0
1
1
R
–
–
–
–
Chip action
Comments
1
–
0
–
0
–
0
–
1
–
0
–
(23) System Reset
Draining capacitor
Wait ~1ms before V
DD
OFF
B
RIEF
D
ISPLAY
-OFF
Type C/D W/R D7 D6 D5 D4 D3 D2 D1 D0
R
0
0
1
0
C
1
.
.
1
0
#
#
R
0
0
1
0
* This is only recommended for very brief display OFF (under 10mS).
If image becomes unstable use the
Extended Display OFF
approach shown below.
Chip action
Comments
1
#
.
.
#
1
0
#
.
.
#
0
1
#
.
.
#
1
1
#
.
.
#
1
1
#
.
.
#
1
0
#
.
.
#
1
(18) Set Display Disable
Write display RAM
0
.
.
#
.
.
#
.
.
Set up display image (Image
update is optional. Data in
the RAM is retained through
the SLEEP state.)
(18) Set Display Enable