Hardware Description
ARM DUI 0224I Copyright © 2003-2010 ARM Limited. All rights reserved. 3-79
3.15 PCI interface
The PCI subsystem enables you to use PCI expansion cards with the PB926EJ-S and
the PCI enclosure.
PCI bridges pass valid accesses between the PB926EJ-S and the PCI bus.
The slave bridge connected to the AHB M2 bus recognizes addresses
0x41000000
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 3-33.
Figure 3-33 PCI bridge
See also and Appendix D PCI Backplane and Enclosure and PCI controller on
page 4-74.