HM17CM256 datasheet(31/111 Pages) HYNIX

Part #	HM17CM256

Description	128XRGBX82 OUTPUT LCD DRIVER IC with built-in RAM

PDF	111 Pages

Scroll/Zoom	100%

Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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31 / 111 page

HM17CM256

- 31 -

DISPLAY RAM BITMAP AT BLACK & WHITE MODE (MON=”1”)

The MSBs of display RAM data ( 3 bit, 2 bit ) is used as display data at black and white mode.

example)

8 bit width access ( the same method as 16 bit width access)

•

ACCESS when (REF, SWAP)=(0, 0) or (1, 1)

notice) internal access X address :nH

(access when REF=”0”)

:7FnH~nH (access when REF=”1”)

•

ACCESS when (REF, SWAP)=(0, 1) or (1, 0)

notice) internal access X address :nH

(access when REF=”0”)

:7FnH~nH (access when REF=”1”)

SEGAi

SEGBi

Palette Bj

Palette Aj

SEGCi

Palette Cj

MSB

LSB

MSB

LSB

MSB

GLSB circuit

Gradation palette

i=0~127

j=0~7

CPU access data

X address :nH

Gradation control circuit.

Display RAM data

SEGCi

SEGBi

SEGAi

Palette Cj

Palette Bj

Palette Aj

MSB

LSB MSB

LSB

MSB

Gradation palette

i=0~127

j=0~7

CPU access data

X address :nH

Gradation control circuit

Display RAM data

GLSB circuit

HM17CM256 Datasheet(PDF) 31 Page - Hynix Semiconductor

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