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MPC8280 Datasheet(PDF) 332 Page - Freescale Semiconductor, Inc |
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MPC8280 Datasheet(HTML) 332 Page - Freescale Semiconductor, Inc |
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332 / 1386 page  PCI Bridge MPC8280 PowerQUICC II Family Reference Manual, Rev. 1 9-24 Freescale Semiconductor Figure 9-14. Address Map Example 9.10.1 Address Map Programming The address map has a number of programmable ranges to determine the PCI bridge’s response to all transactions. The following are the PCI bridge’s rules for programming each address range: • All address regions should not overlap but do not have to be contiguous. • All address ranges must be aligned on a multiple of the region size. • Inbound and outbound windows for the same bus should not overlap. This means that a situation where an inbound window translation points back into an outbound window, or a situation where an outbound translation window points back into an inbound window, are not allowed. 9.10.2 Address Translation The address translation registers allow the remapping of inbound and outbound transactions. The reset configuration for outbound transactions are that all outbound requests from the core side of the PCI bridge Address translation Address translation Address translation Internal registers Address translation Address translation Internal registers PCI master memory view PCI master I/O view 60x bus master view 000 4G 4G 4G PCI bridge PCI memory |
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