www.国家的.com # 修订 1.0
Geode™ GX1 处理器 序列
表格 的 内容
(持续)
4.0 整体的 功能 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
4.1 整体的 功能 程序编制 接口 . . . . . . . . .................97
4.1.1 Graphics 控制 寄存器 . . . . . . . . . . . . . . . ..............................97
4.1.2 ControlRegisters ....................................................99
4.1.3 Graphics 记忆 . . . . . . ..............................................99
4.1.4 ScratchpadRAM ...................................................100
4.1.4.1 initializationofscratchpadram........................................100
4.1.4.2 ScratchpadRAMUtilization...........................................100
4.1.4.3 bltbuffer.........................................................100
4.1.5 DisplayDriverInstructions ............................................102
4.1.6 cpu_读/cpu_writeinstructions ..................................102
4.2 internalbusinterfaceunit............................................103
4.2.1 FPUErrorSupport ..................................................103
4.2.2 A20MSupport .....................................................103
4.2.3 SMIGeneration ....................................................103
4.2.4 640KBto1MBRegion ..............................................103
4.2.5 InternalBusInterfaceUnitRegisters ....................................104
4.3 MEMORYCONTROLLER ...................................................107
4.3.1 MemoryArrayConfiguration ..........................................108
4.3.2 MemoryOrganizations ...............................................109
4.3.3 SDRAMCommands.................................................110
4.3.3.1 sdraminitializationsequence........................................111
4.3.4 MemoryControllerRegisterDescription .................................112
4.3.5 AddressTranslation .................................................117
4.3.5.1 HighOrderInterleaving ..............................................117
4.3.5.2 autoloworderinterleaving...........................................117
4.3.5.3 physicaladdresstodramaddressconversion...........................117
4.3.6 MemoryCycles ....................................................120
4.3.7 sdraminterfaceclocking............................................123
4.4 GRAPHICSPIPELINE ......................................................125
4.4.1 bitblt/vectorengine ................................................125
4.4.2 主控/slaveregisters ..............................................126
4.4.3 PatternGeneration ..................................................126
4.4.3.1 MonochromePatterns ...............................................127
4.4.3.2 ditherpatterns.....................................................127
4.4.3.3 colorpatterns......................................................128
4.4.4 SourceExpansion ..................................................128
4.4.5 RasterOperations ..................................................128
4.4.6 Graphics Pipeline 寄存器 描述 . . . . .............................129
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