W90P710CD Datasheet, PDF (260/552 Pages) Winbond – 32-BIT ARM7TDMI-BASED MCU

Monochrome STN with 4-bit data bus:
W90P710CD/W90P710CDG
Fig. 6.10.3.5 Monochrome STN output format - 1
Monochrome STN with 8-bit data bus:
Fig. 6.10.3.6 Monochrome STN output format - 2
Only when LUTWREN is enabled, Lookup Table SRAM can be read / write by CPU. If LUTWREN is
disabled, Lookup Table SRAM is accessed by LCD Controller.
Palette function can’t be enabled for STN panel. Because the Lookup Table SRAM is only 256 x32 bit,
so , if one of Video or OSD image is 8bpp, both the VDLUTEN and OSDLUTEN can only be enabled
when the Palette Table of Video is the same as OSD.
If VDLUTEN or OSDLUTEN is enabled, LCD Controller will output data from Lookup Table SRAM for
8bpp, 4bpp, 2bpp, 1bpp image. Else, LCD Controller will treat 8bpp data as RGB332, 4bpp as 16
gray-level, 2bpp as 4 gray-level, 1bpp as 2 gray-level (black or white).
At normally, LCD Databus output is RGB888, 24bit. If LCDBUS is set to 01, LCD Databus output is
RGB666, 18bit. If LCDBUS is set to 10, LCD Databus output is RGB332, 8bit. The other bit will be
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