uc1682 ETC-unknow, uc1682 Datasheet - Page 25

• Manufacturer Part Number: uc1682
• Description: 80 X 104rgb C-stn Lcd Controller-driver W/ 32-shade Per Dot, 12-bit Per Rgb
• Manufacturer: ETC-unknow

(24) NOP
(25) S
This command is used for UltraChip production testing. Please do not use.
(26) S
Bias ratio definition:
(27) R
This command is used to reset cursor update mode function.
(28) S
This command is used for set cursor update mode function. When cursor update mode is set, UC1682 will
update register CR with the value of register CA. The column address CA will increment with write RAM data
operation but the address wraps around will be suspended no matter what WA setting is. However, the
column address will not increment in read RAM data operation.
The set cursor update mode can be used to implement “write after read RAM” function. The column address
(CA) will be restored to the value, which is before the set cursor update mode command, when resetting
cursor update mode.
The purpose of this pair of commands and their features is to support “write after read” function for cursor
implementation.
(29) S
This command programs the ending COM electrode. CEN defines the number of used COM electrodes, and
it should correspond to the number of pixel-rows in the LCD.
Revision 0.6
This command is used for “no operation”.
Reset Cursor Update Mode AC[3]=0
ET
ET
ESET
ET
ET
(Double byte command)
(Double byte command)
T
LCD B
Set Bias Ratio BR [1:0]
C
COM E
00b= 5
Set AC[3]=1 CR=CA
EST
URSOR
C
URSOR
No Operation
C
IAS
ONTROL
Set CEN
ND
CA=CR
Action
Action
Action
Action
Action
Action
Set TT
U
PDATE
R
U
ATIO
PDATE
M
01b=7
ODE
M
ODE
C/D W/R D7
C/D W/R D7
C/D W/R D7
C/D W/R D7
C/D W/R D7
C/D W/R D7
0
0
0
0
0
0
0
0
10b=8
0
0
0
0
0
0
0
0
1
1
1
1
1
1
D6
D6
D6
D6
D6
D6
1
1
1
1
1
1
CEN register parameter
11b=9
D5
D5
D5
D5
D5
D5
Testing parameter
1
1
1
1
1
1
D4
D4
D4
D4
D4
D4
0
0
0
0
1
0
D3
D3
D3
D3
D3
D3
0
1
1
1
0
0
80x104RGB CSTN Controller-Driver
D2
D2
D2
D2
D2
D2
0
0
1
1
0
1
BR1 BR0
D1
D1
D1
D1
D1
D1
1
1
1
0
TT
D0
D0
D0
D0
D0
D0
1
0
1
1
UC1682
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