Geode GXLV Processor Series Low Power Integrated x86 Solutions

Integrated Functions (Continued)Bit Name DescriptionTable 4-24. Graphics Pipeline Configuration Registers (Continued)GX_BASE+8110h-8111h GP_PAT_COLOR_0 Register (R/W) Default Value = 0000h15:0 8-bpp Mode: 8-bpp color: The color index must be duplicated in the upper byte.16-bpp Mode: 16-bpp color (RGB)Note: The Graphics Pipeline Pattern Color 0-3 Registers specify the colors used when expanding pattern data.GX_BASE+8112h-8113h GP_PAT_COLOR_1 Register (R/W) Default Value = 0000h15:0 8-bpp Mode: 8-bpp color: The color index must be duplicated in the upper byte.16-bpp Mode: 16-bpp color (RGB)Note: The Graphics Pipeline Pattern Color 0-3 Registers specify the colors used when expanding pattern data.GX_BASE+8114h-8115h GP_PAT_COLOR_2 Register (R/W) Default Value = 0000hGeode GXLV Processor Series15:0 8-bpp Mode: 8-bpp color: The color index must be duplicated in the upper byte.16-bpp Mode: 16-bpp color (RGB)Note: The Graphics Pipeline Pattern Color 0-3 Registers specify the colors used when expanding pattern data.GX_BASE+8116h-8117h GP_PAT_COLOR_3 Register (R/W) Default Value = 0000h15:0 8-bpp Mode: 8-bpp color: The color index must be duplicated in the upper byte.16-bpp Mode: 16-bpp color (RGB)Note: The Graphics Pipeline Pattern Color 0-3 Registers specify the colors used when expanding pattern data.GX_BASE+8120h-8123h GP_PAT_DATA_0 Register (R/W) Default Value = 00000000h31:0 GP Pattern Data Register 0: The Graphics Pipeline Pattern Data Registers 0 through 3 together contain 128 bits of patterndata. The GP_PAT_DATA_0 register corresponds to bits [31:0] of the pattern data.GX_BASE+8124h-8127h GP_PAT_DATA_1 Register (R/W) Default Value = 00000000h31:0 GP Pattern Data Register 1: The Graphics Pipeline Pattern Data Registers 0 through 3 together contain 128 bits of patterndata. The GP_PAT_DATA_1 register corresponds to bits [63:32] of the pattern data.GX_BASE+8128h-812Bh GP_PAT_DATA_2 Register (R/W) Default Value = 00000000h31:0 GP Pattern Data Register 2: The Graphics Pipeline Pattern Data Registers 0 through 3 together contain 128 bits of patterndata. The GP_PAT_DATA_2 register corresponds to bits [95:64] of the pattern data.GX_BASE+812Ch-812Fh GP_PAT_DATA_3 Register (R/W) Default Value = 00000000h31:0 GP Pattern Data Register 3: The Graphics Pipeline Pattern Data Registers 0 through 3 together contain 128 bits of patterndata. The GP_PAT_DATA_3 register corresponds to bits [127:96] of the pattern data.GX_BASE+8140h-8143h GP_VGA_WRITE Register (R/W) Default Value = xxxxxxxxhNote that the register at GX_BASE+82140h is located in the area designated for the graphics pipeline but is used for VGA emulationpurposes. Refer to Table 4-39 on page 165 for this register’s bit formats.GX_BASE+8144h-8147h GP_VGA_READ Register (R/W) Default Value = 00000000hNote that the register at GX_BASE+8144h is located in the area designated for the graphics pipeline but is used for VGA emulationpurposes. Refer to Table 4-39 on page 165 for this register’s bit formats.GX_BASE+8200h-8203h GP_RASTER_MODE Register (R/W) Default Value = 00000000h31:13 RSVD Reserved: Set to 0.12 TB Transparent BLT: When set, this bit enables transparent BLT. The source color data will be compared to acolor key and if it matches, that pixel will not be drawn. The color key value is stored in the BLT buffer as destinationdata. The raster operation must be set to C6h, and the pattern registers must be all F’s for this modeto work properly.11 ST Source Transparency: Enables transparency for monochrome source data. Those pixels corresponding toclear bits in the source data are not drawn.10 PT Pattern Transparency: Enables transparency for monochrome pattern data. Those pixels corresponding toclear bits in the pattern data are not drawn.Revision 1.3 131 www.national.com