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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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GXM 데이터시트(PDF) 91 Page - National Semiconductor (TI) |
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GXM 데이터시트(HTML) 91 Page - National Semiconductor (TI) |
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91 / 244 page  Revision 3.1 91 www.national.com 4.0 Integrated Functions The Geode GXm processor integrates a memory control- ler, graphics pipeline and display controller in a Unified Memory Architecture (UMA). UMA simplifies system designs and significantly reduces overall system costs associated with high chip count, small footprint notebook designs. Performance degradation in traditional UMA sys- tems is reduced through the use of National Semiconduc- tor’s Display Compression Technology (DCT). Figure 4-1 shows the major functional blocks of the GXm processor and how the internal bus interface unit operates as the interface between the processor’s core units and the integrated functions. This section details how the integrated functions and inter- nal bus interface unit operate and their respective regis- ters. Figure 4-1. Internal Block Diagram Write-Back Unit FPU Internal Bus Interface Unit Graphics Memory Display PCI SDRAM Port CS5530 PCI Bus Integer Cache Unit Integrated Functions MMU (CRT/LCD TFT) X-Bus Pipeline Controller Controller Controller C-Bus |
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