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VR4102 Datasheet(PDF) 135 Page - NEC |
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VR4102 Datasheet(HTML) 135 Page - NEC |
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135 / 701 page  CHAPTER 5 MEMORY MANAGEMENT SYSTEM 135 5.3 PHYSICAL ADDRESS SPACE Using a 32-bit address, the processor physical address space encompasses 4 Gbytes. The VR4102 uses this 4- Gbyte physical address space as shown in Figure 5-8. Figure 5-8. VR4102 Physical Address Space 0x1800 0000 0x1FFF FFFF 0x2000 0000 0xFFFF FFFF 0x17FF FFFF 0x1400 0000 0x0000 0000 0x09FF FFFF 0x0A00 0000 0x1000 0000 0x13FF FFFF 0x0B00 0000 0x0FFF FFFF 0x0AFF FFFF 0x0D00 0000 0x0CFF FFFF RFU DRAM Area (Mirror Image of 0x0000 0000 to 0x1FFF FFFF A) ROM Area (Include Boot ROM) System Bus I/O Area (ISA-IO) System Bus I/O Area (ISA-MEM) RFU Internal I/O Area 1 Internal I/O Area 2 LCD/High-Speed System Bus Area 0x0C00 0000 0x0BFF FFFF 0x03FF FFFF 0x0400 0000 |
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