Geode GXLV Processor Series Low Power Integrated x86 Solutions
Geode GXLV Processor Series Low Power Integrated x86 Solutions
Geode GXLV Processor Series Low Power Integrated x86 Solutions
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Table of Contents (Continued)4.5 DISPLAYCONTROLLER..................................................1344.5.1 DisplayFIFO ....................................................1354.5.2 CompressionTechnology ...........................................1354.5.3 HardwareCursor .................................................1364.5.4 DisplayTimingGenerator...........................................1364.5.5 DitherandFrameRateModulation ...................................1364.5.6 DisplayModes ...................................................1364.5.7 Graphics Memory Map . . ...........................................1404.5.7.1 DCMemoryOrganizationRegisters ..................................1404.5.7.2 FrameBufferandCompressionBufferOrganization......................1404.5.7.3 VGADisplaySupport..............................................1414.5.8 DisplayControllerRegisters.........................................1414.5.8.1 ConfigurationandStatusRegisters...................................1444.5.9 MemoryOrganizationRegisters......................................1484.5.10 TimingRegisters .................................................1504.5.11 CursorPositionandMiscellaneousRegisters ...........................1524.5.12 PaletteAccessRegisters ...........................................1534.5.13 FIFODiagnosticRegisters ..........................................1544.5.14 CS5530DisplayControllerInterface ..................................1554.5.14.1 CS5530VideoPortDataTransfer ....................................1564.6 VIRTUALVGASUBSYSTEM...............................................1574.6.1 TraditionalVGAHardware ..........................................1574.6.1.1 VGAMemoryOrganization .........................................1584.6.1.2 VGAFrontEnd...................................................1584.6.1.3 AddressMapping.................................................1584.6.1.4 VideoRefresh ...................................................1594.6.1.5 VGAVideoBIOS .................................................1594.6.2 VirtualVGA .....................................................1594.6.2.1 DatapathElements ...............................................1604.6.2.2 <strong>GXLV</strong>VGAHardware .............................................1604.6.2.3 SMIGeneration ..................................................1614.6.2.4 VGARangeDetection .............................................1614.6.2.5 VGASequencer..................................................1614.6.2.6 VGAWrite/ReadPath .............................................1614.6.2.7 VGAAddressGenerator ...........................................1614.6.2.8 VGAMemory ....................................................1614.6.3 VGAConfigurationRegisters ........................................1624.6.4 VirtualVGARegisterDescriptions ....................................1644.7 PCICONTROLLER ......................................................1664.7.1 X-BusPCISlave..................................................1664.7.2 X-BusPCIMaster ................................................1664.7.3 PCIArbiter ......................................................1664.7.4 GeneratingConfigurationCycles .....................................1664.7.5 GeneratingSpecialCycles..........................................1664.7.6 PCIConfigurationSpaceControlRegisters .............................1674.7.7 PCIConfigurationSpaceRegisters ...................................1684.7.8 PCICycles ......................................................1734.7.8.1 PCIReadTransaction .............................................1734.7.8.2 PCIWriteTransaction .............................................1744.7.8.3 PCIArbitration ...................................................1754.7.8.4 PCIHaltCommand ...............................................175<strong>Geode</strong> <strong>GXLV</strong> <strong>Processor</strong> <strong>Series</strong>Revision 1.3 7 www.national.com