HT0313A Tomato LSI, Inc., HT0313A Datasheet - Page 37

• Manufacturer Part Number: HT0313A
• Description: 65COM/132SEG DRIVER & CONTROLLER FOR STN LCD
• Manufacturer: Tomato LSI, Inc.

HT0313A
TOMATO LSI Inc.
7-6. Reference voltage select
Consists of 2-byte instruction the first instruction sets reference voltage mode, the second one updates the
contents of reference voltage register. After second instruction, reference voltage mode is released.
The first instruction: Set reference voltage select mode
The second instruction: Set reference voltages select mode
SV5
RS
RS
0
0
0
0
1
1
1
:
:
SV4
RW
RW
0
0
0
0
0
1
1
:
:
65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD
DB7
DB7
SV3
1
X
0
0
0
1
1
:
:
Figure 7-3. Sequence for setting the reference voltage
37
Second instruction for register setting
DB6
DB6
SV2
X
0
0
0
0
1
1
:
:
First instruction for mode setting
Setting reference voltage start
Setting reference voltage end
DB5
DB5
SV5
SV1
0
0
0
0
1
1
:
:
DB4
DB4
SV4
SV0
0
0
1
0
0
1
:
:
DB3
DB3
SV3
0
Reference voltage parameter ( )
DB2
DB2
SV2
0
32 (default)
62
63
0
1
:
:
Ver 0.0
DB1
DB1
SV1
0
DB0
DB0
SV0
1