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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8280 датащи(PDF) 145 Page - Freescale Semiconductor, Inc |
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MPC8280 датащи(HTML) 145 Page - Freescale Semiconductor, Inc |
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145 / 1386 page  MPC8280 PowerQUICC II Family Reference Manual, Rev. 1 Freescale Semiconductor 3-1 Chapter 3 Memory Map The MPC8280’s internal memory resources are mapped within a contiguous block of memory. The size of the internal space is 256 Kbytes. The location of this block within the global 4-Gbyte real memory space can be mapped on 256-Kbytes resolution through an implementation-specific special register called the internal memory map register (IMMR). For more information, see Section 4.3.2.7, “Internal Memory Map Register (IMMR).” Figure 3-1 shows the internal memory resources. Figure 3-1. Internal Memory 0 Global memory1 0x0_0000 0x1_0000 0x2_0000 1 Gbyte 2 Gbyte 3 Gbyte 4 Gbyte 0x3_0000 0x4_0000 DPRAM2 DPRAM1 16 Kbytes 16 Kbytes Dual-Port RAM IRAM 32 Kbytes The location of the 256-Kbyte block of internal memory within global memory is selected according to the internal memory map register (IMMR). Internal memory must be mapped on 256-Kbyte resolution. 1 Location of internal memory resources in this figure is for illustration only. 2 The right vertical column is for illustration only. For a complete list of modules and registers, refer to Table 3-1. (see note 2) SIU Memory PCI Interrupt Clocks/Reset I/O ports Serial controller controller CPM interface CPM interface |
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