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HT0610 Datasheet(PDF) 13 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) 13 Page - Holtek Semiconductor Inc

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Command
Description
Set Display On/Off
(Display Mode/Standby Mode)
The display on command turns the LCD common and segment outputs on and has
no effect to the static icons output. This command causes the conversion of data in
BGDRAM to necessary waveforms on the common and segment driving outputs.
The on-chip bias generator is also turned on by this command.
(Note:
²oscillator on² command should be sent before ²display on² is selected.)
The display off command turns the display off and the states of the LCD driver are
as follow during display off:
· The common and segment outputs are fixed at VLL1(VSS)
· The bias voltage generator is turned off.
· The RAM and content of all register are retained.
· IC will accept new commands and data.
· The status of the static Icons and oscillator are not affected by display off com-
mand.
Set BGDRAM Page Address
This command positions the row address to 1 of 5 possible positions in BGDRAM.
Master Clear BGDRAM
This command is to clear the 480 byte BGDRAM by setting the RAM data to zero.
Issue this command followed by a dummy writes command. The RAM for icon line
will not be affected by this command.
Master Clear Icons
This command is used to clear the data in page 5 of BGDRAM, which stores the
icon line data. Before using this command, set the page address to page 5 by the
command
²set BGDRAM page address². A dummy write data is also needed after
this
²master clear Icons² command to make the clear icon action effective.
Set Display with Icon Line
If 1/32 Mux selected, use this command change to 1/33 Mux for using the Icon line.
This command can also change Icon display mode to normal display mode (1/32 or
1/33 MUX).
Set Icon Display Mode
This command forces the output to the icon display mode. Display on row 0 to row
31 will be disabled.
Set Icon Line/Static Icon
Contrast Level
The contrast of the icon line and static icon in icon mode can be set by this com-
mand. There are four levels to select from.
Set Vertical Scroll Value
This command is used to scroll the screen vertically with scroll value 0 to 31. With
scroll value equals to 0, row 0 of BGDRAM is mapped to com 0 and row 1 through
row 31 are mapped to com 1 through com 31 respectively. With scroll value equal
to 1, row 1 of BGDRAM is mapped to com 0, then row 2 through row 31 will be
mapped to com 1 through com 30 respectively and row 0 will be mapped to com 31.
Com 32 is not affected by this command.
Save/Restore BGDRAM
Column Address
With bit option=1 in this command, the save/restore column address command
saves a copy of the column address of BGDRAM. With a bit option=0, this com-
mand restores the copy obtained from the previous execution of saving column ad-
dress.
This instruction is very useful for writing full graphics characters that are larger than
8 pixels vertically.
Set Column Mapping
This instruction selects the mapping of BGDRAM to segment drivers for mechani-
cal flexibility. There are 2 mappings to select:
· Column 0~column 119 of BGDRAM mapped to SEG0~SEG119 respectively
· Column 0~column 119 of BGDRAM mapped to SEG119~SEG0 respectively
COM 32 will not be affected by this command. Detailed information please refer to
section
²display output description².
Set Row Mapping
This instruction selects the mapping of BGDRAM to common drivers for mechani-
cal flexibility. There are 2 mappings to select:
· Row 0~Row 31 of BGDRAM mapped to COM 0~COM 31 respectively.
· Row 0~Row 31 of BGDRAM mapped to COM 31~COM 0 respectively.
COM 32 will not be affected by this command. Detail information please refer to
section
²display output description².
HT0610
Rev. 1.00
13
February 24, 2004


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