RM0319 datasheet(270/368 Pages) STMICROELECTRONICS

270 / 368 page

LCD display controller (CLCD)

RM0319

270/368

Doc ID 022640 Rev 3

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STN 4- or 8-bit interface mode

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STN dual or single panel mode

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Little-endian, big-endian, or WinCE mode

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Interrupt generation event

LCD Panel resolutions programmed to values:

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320x200, 320x240

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640x200, 640x240, 640x480

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800x600

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1024x768

Types of LCD panel supported:

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Active matrix TFT panels with up to 24 bit bus interface

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Single-panel monochrome STN panels (4 bit and 8 bit bus interface)

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Dual-panel monochrome STN panels (4 bit and 8 bit bus interface per panel)

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Single-panel color STN panels, 8 bit bus interface

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Dual-panel color STN panels, 8 bit bus interface per panel

Number of colors supported for TFT panels:

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1 bpp, palettized, 2 colors selected from available colors.

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2 bpp, palettized, 4 colors selected from available colors.

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4 bpp, palettized, 16 colors selected from available colors.

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8 bpp, palettized, 256 colors selected from available colors

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16 bpp, direct 5:5:5 RGB, with one bpp not normally being used. This pixel is still

output, and can be used as a bright bit to connect to the least significant bit (LSB) of R,

G and B components of a 6:6:6 TFT panel.

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24 bpp, direct 8:8:8 RGB, providing over 16 million colors.

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Each 16-bit palette entry is composed of five bpp (RGB) plus a common intensity bit.

This gives better memory utilization and performance compared to a full six bpp

structure. The total amount of colors supported can be doubled from 32 K to 64 K if the

intensity bit is used and applied to all three color components simultaneously. Refer to

Section 24.3 for more information on signals.

Number of colors supported for color STN panels are:

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1 bpp, palettized, 2 colors selected from 3375

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2 bpp, palettized, 4 colors selected from 3375

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4 bpp, palettized, 16 colors selected from 3375

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8 bpp, palettized, 256 colors selected from 3375

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16 bpp, direct 4:4:4 RGB, with 4 bpp not being used

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