Pci Address Assignments - Sun Microsystems Sun Blade 150 Service Manual

PCI (which is further subdivided into the primary PCI bus (PCI-A) and the
I
secondary PCI bus (PCI-B bus) when the APB ASIC is used
TABLE C-7
Address Range in
PA<40:0>
0x000.0000.0000 -
FFFF.FFFF
0x001.0000.000 -
0x1FF.FFFF.FFFF
0x1FC.0000.0000 -
0x1FD.FFFF.FFFF
0x1FE.0000.0000 -
0x1FF.FFFF.FFFF
C.10.2

PCI Address Assignments

The following table lists the PCI address assignments.
PCI Address Assignments
TABLE C-8
Address Range in PCI Address
0x8000.0000 - 0xBFFF.FFFF
0x4000.0000 - 0x7FFF.FFFF
0x40.0000 - 0x7f.ffff
0x0000.0000 - 0x3FFF.FFFF
0xC000.0000 - 0xFFFF.FFFF
0x00.0000 - 0x3f.FFFF
0xC0.0000 - 0xFF.FFF
C.10.2.1 PCI Bus A Address Assignments
PCI bus A has all the PCI slots and the address is programmable by the OpenBoot
PROM.
Port Allocations
Size
4 Gbyte
Do not use
8 Gbytes
8 Gbytes
Size PCI Space Addressed
1 Gbyte Primary PCI DVMA
space
1 Gbyte PCI bus A memory
space
4 Mbytes PCI bus A I/O space
2 Gbytes PCI bus B memory
space
8 Mbytes PCI bus B I/O space
Port Access
Main memory
Undefined
UPA graphics
CPU IO
Notes
CPU DVMA register (equals 0x30)
PCI slots APB ASIC register (equals 0xc)
PCI slots
On-board PCI bus
APB ASIC B register
(equals 0xc3)
Appendix C Functional Description
Access Type
Cacheable
Cacheable
Noncacheable
Noncacheable
C-23