The PCI subsystem enables you to use PCI expansion cards with the PB1176JZF-S when plugged into the PCI enclosure, or plug into a PC as a card.

PCI bridges pass valid accesses between the PB1176JZF-S and the PCI bus.

The slave bridge connected to the AHB M2 bus recognizes addresses 0x46000000 to 0x6FFFFFFF as being intended for a target within the PCI address space of the memory map, and passes accesses within this region to the PCI bus. The PCI_IMAPx registers define the address translation values for the PCI I/O, PCI configuration, and PCI memory windows.

The PCI_SMAPx registers define the address translation values for PCI accesses to the AHB S bus.

The AHB to PCI bridge supports read and write accesses in both directions, as shown in Figure 3.8.

See also and Appendix D PCI Backplane and Enclosure and PCI controller.