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HT0610 Datasheet(PDF) 17 Page - Holtek Semiconductor Inc

Part No. HT0610
Description  33 x 120 LCD Driver
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Maker  HOLTEK [Holtek Semiconductor Inc]
Homepage  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT0610 Datasheet(HTML) 17 Page - Holtek Semiconductor Inc

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Data read write
· To read data from the BGDRAM, input high to RW pin and DCOM pin. Data is valid at the falling edge of CS. And the
BGDRAM column address pointer will be increased by one automatically.
· To write data to the BGDRAM, input low to RW pin and high to DCOM pin. Data is latched at the falling edge of CS.
And the BGDRAM column address pointer will be increased by one automatically.
· No auto address pointer increment will be performed for the dummy write data after ²master clear BGDRAM²
Address increment table (Automatic)
DCOM
RW
Comment
Address Increment
Note
0
0
Write command
0
1
Read command
*1
1
0
Write data
Ö
*2
1
1
Read data
Ö
Address increment is done automatically data read write. The column address pointer of BGDRAM*3 is affected.
Note:
²*1² Refer to the command read contrast value
²*2² If write data is issued after command clear RAM, address increase is not applied
²*3² Column address will be wrapped around when overflow
Power up sequence (Command required)
Command Required
POR Status
Note
Set Clock Frequency
Low
*1
Set Oscillator Enable
Disable
*1
Set Static Icon Control Signals
Static Icon off
*1
Set Duty Cycle
1/32 duty
*1
Set Bias Ratio
1/7 bias
*1
Set Internal DC/DC Converter On
Off
*1
Set Internal Regulator On
Off
*1
Set Temperature Coefficient
TC=0%
*1, *3
Set Internal Contrast Control On
Off
*1, *3
Increase Contrast Level
Contrast level=0
*1, *2, *3
Set Internal Voltage Divider On
Off
*1
Set Segment Mapping
SEG0=COLUMN0
Set Common Mapping
COM0=ROW0
Set Vertical Scroll Value
Scroll value=0
Set Display On
Off
Note:
²*1² Required only if desired status differ from power on reset
²*2² Effective only if internal contrast control is enabled.
²*3² Effective only if the regulator is enabled.
HT0610
Rev. 1.00
17
February 24, 2004


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