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Epson Research and Development Page 17
Vancouver Design Center
Hardware Functional Specification S1D13708
Issue Date: 02/03/07 X39A-A-001-02
2.4 Display Modes
• 1/2/4/8/16 bit-per-pixel (bpp) color depths.
• Up to 64 gray shades on monochrome passive LCD panels or 262144 colors on color
passive LCD panels using Frame Rate Modulation (FRM) and dithering.
• Up to 64 gray shades or 262144 colors on active matrix LCD panels.
• Up to 64 gray shades or 256 colors can be simultaneously displayed in 8 bpp mode.
• Up to 64 gray shades or 65536 colors can be simultaneously displayed in 16 bpp mode.
• Example resolutions:
320x240 at a color depth of 8 bpp
160x160 at a color depth of 16 bpp
160x240 at a color depth of 16 bpp
• Example resolutions with Ink Layer enabled.
640x240 at a color depth of 2 bpp
320x240 at a color depth of 4 bpp
160x120 at a color depth of 16 bpp
2.5 Display Features
• SwivelView™: 90°, 180°, 270° counter-clockwise hardware rotation of display image.
• Virtual display support: displays images larger than the panel size through the use of
panning and scrolling.
• Picture-in-Picture Plus: displays a variable size window overlaid over background
image.
• Ink Layer.
• Double Buffering/Multi-pages: provides smooth animation and instantaneous screen
updates.
2.6 Clock Source
• Three clock inputs: CLKI, CLKI2 and XTAL. It is possible to use one clock input only.
• Bus clock can be internally divided by 2, 3, or 4.
• Memory clock is derived from bus clock, CLKI2 or XTAL (XTAL is only available
when configured for Indirect Interface). It can be internally divided by 2, 3, or 4.
• Pixel clock can be derived from CLKI, CLKI2, XTAL, bus clock, or memory clock. It
can be internally divided by 2, 3, 4, or 8.