HT0610 Holtek Semiconductor Inc., HT0610 Datasheet - Page 13

• Manufacturer Part Number: HT0610
• Description: Ht0610 -- 33x120 Lcd Driver
• Manufacturer: Holtek Semiconductor Inc.

Rev. 1.10
Set Display On/Off
(Display Mode/Standby Mode)
Set BGDRAM Page Address
Master Clear BGDRAM
Master Clear Icons
Set Display with Icon Line
Set Icon Display Mode
Set Icon Line/Static Icon
Contrast Level
Set Vertical Scroll Value
Save/Restore BGDRAM
Column Address
Set Column Mapping
Set Row Mapping
Command
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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:
This command positions the row address to 1 of 5 possible positions in 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.
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.
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).
This command forces the output to the icon display mode. Display on row 0 to row
31 will be disabled.
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.
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.
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.
This instruction selects the mapping of BGDRAM to segment drivers for mechani-
cal flexibility. There are 2 mappings to select:
COM 32 will not be affected by this command. Detailed information please refer to
section ²display output description².
This instruction selects the mapping of BGDRAM to common drivers for mechani-
cal flexibility. There are 2 mappings to select:
COM 32 will not be affected by this command. Detail information please refer to
section ²display output description².
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.
Column 0~column 119 of BGDRAM mapped to SEG0~SEG119 respectively
Column 0~column 119 of BGDRAM mapped to SEG119~SEG0 respectively
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.
13
Description
April 4, 2007
HT0610