Table 6-66. Panel Output Signal Mapping - AMD Geode LX 600@0.7W Data Book

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FP Functional Description

The FP connects to the RGB port of the video mixer.

LCD Interface

The FP interfaces directly to industry standard 18-bit or 24-

bit active matrix thin-film-transistor (TFT). The digital RGB

or video data that is supplied by the video logic is con-

verted into a suitable format to drive a wide variety range of

panels with variable bits. The LCD interface includes dith-

ering logic to increase the apparent number of colors dis-

played for use on panels with less than 6 bits per color. The

LCD interface also supports automatic power sequence of

panel power supplies.

Table 6-66. Panel Output Signal Mapping

Mode Selection

The FP can be configured for operation with most standard

• Supports TFT panels with up to 24-bit interface with

640x480, 800x600, 1024x768, 1280x1024, and

1600x1200 pixel resolutions. Either one or two pixels per

clock is supported for all resolutions. Other resolutions

below 640x480 are also supported.

Table 6-66 shows the mapping of the data in the supported

For TFT panel support, the output from the dither block is

directly fed on to the panel data pins (DRGBx). The data

that is being sent on to the panel data pins is in sync with

the TFT timing signals such as HSYNC, VSYNC, and LDE.

One pixel (or two pixels in 2 pix/clk mode) is shifted on

every positive edge of the clock as long as DISP_ENA is

AMD Geode™ LX Processors Data Book

Video Processor

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