HM17CM4096 ETC2 [List of Unclassifed Manufacturers], HM17CM4096 Datasheet - Page 20

• Manufacturer Part Number: HM17CM4096
• Description: 128XRGBX162 OUTPUT LCD DRIVER IC with built-in RAM
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

(7) Window address assign of display RAM
And so, 128x162 dot gray display or 384
description at command function.)
address on non-effective area and it is forbidden to set address on outside area in each case.
independently with X, Y address counters.
cycle and this data comes out from display latch at falling edge of CL signal.
per one frame cycle and the address is counted up with synchronized CL input.
display RAM designated by X and Y address.
two points.
the end point of them is done by X end address and Y end address register value.
inner addresses depend on WLS bit.
sequence and end point X address, Y address in sequence after executing Win command (WIN=“1”,
auto increase mode AXI=“1”, AYI=“1”) and then access to Display RAM.
area.
( end point of Y address ).
Display RAM is accessed with X address and Y address from CPU by 8 bit or 16 bit unit.
X address and Y address can be increased automatically by setting status of control register.
The address is increased per every read and write of display RAM by CPU. ( Please see detail
X direction is selected by X address and Y direction is selected by Y address. Please do not set the
384bit display data of Y direction are read out to display latch at rising edge of CL signal per 1 line
Display start line address register is preset to line counter at “H” state of FLM signal which changes
In the Black & white mode, the MSBs of 4 bit corresponding with RGB are used to display data.
Display line address counter is synchronized by timing signals of LCD driver, and it operates
This IC can be accessed to display RAM by window area designation in addition to access to
Through address space of all display address, specific area of RAM can be accessed by designated
The start point of two point addresses is assigned by normal X address and Y address register and
Read modified write action can be taken by AIM=“1”.
In case of using window area accessing mode, you must set start point X address, Y address in
And set start point and end point not to be designated to access the outside of available address
Address set value should be taken to set AX
(X, Y)
address designation
Window display area
162 B/W mode display is possible.
X direction
EX ( end point of X address ) and AY EY
end address designation
(X, Y)
All display RAM area
HM17CM4096
Designated
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