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30134-23 参数 Datasheet PDF下载

30134-23图片预览
型号: 30134-23
PDF下载: 下载PDF文件 查看货源
内容描述: 的Geode ™ GXLV处理器系列的低功耗X86集成解决方案 [Geode⑩ GXLV Processor Series Low Power Integrated x86 Solutions]
分类和应用: 外围集成电路时钟
文件页数/大小: 247 页 / 4117 K
品牌: NSC [ National Semiconductor ]
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PCI Host Controller  
Display Controller  
Several arbitration schemes supported  
Display Compression Technology (DCT) architecture  
greatly reduces memory bandwidth consumption of  
display refresh  
Supports up to three PCI bus masters  
Synchronous to CPU core  
Supports a separate video buffer and data path to  
enable video acceleration in Geode I/O companion  
devices  
Allows external PCI master accesses to main memory  
concurrent with CPU accesses to L1 cache  
Internal palette RAM for gamma correction  
Virtual Systems Architecture Technology  
Direct interface to Geode I/O companion devices for  
CRT and TFT flat panel support eliminates the need for  
an external RAMDAC  
Innovative architecture allowing OS independent (soft-  
ware) virtualization of hardware functions  
Provides XpressGRAPHICS subsystem:  
— High performance legacy VGA core compatibility  
Hardware cursor  
Supports up to 1280x1024x8 bpp and  
1024x768x16 bpp  
Note: Uses 2D Graphics Accelerator.  
Provides 16-bit XpressAUDIO subsystem:  
— 16-bit stereo FM synthesis  
— OPL3 emulation  
— Supports MPU-401 MIDI interface  
— Hardware assist provided via Geode I/O companion  
chip  
XpressRAM Subsystem  
SDRAM interface tightly coupled to CPU core and  
graphics subsystem for maximum efficiency  
64-Bit wide memory bus  
Additional hardware functions can be supported as  
needed  
Support for:  
Two 168-pin unbuffered DIMMs  
— Up to 16 simultaneously open banks  
— 16-byte reads (burst length of two)  
— Up to 256 MB total memory supported  
2D Graphics Accelerator  
Accelerates BitBLTs, line draw, text  
Bresenham vector engine  
Supports all 256 ROPs  
Diverse Operating System Support  
Microsoft’s Windows 2000, 9X, NT, and CE  
Sun Microsystems’ Java  
WindRiver Systems’ VxWorks  
QNX Software Systems’ QNX  
Linux  
Supports transparent BLTs and page flipping for  
Microsoft’s DirectDraw  
Runs at core clock frequency  
Full VGA and VESA mode support  
Special "driver level” instructions utilize internal  
scratchpad for enhanced performance  
Revision 1.1  
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