Base Address 1 Register; Base Address 2 Register - Intel IXP45X Developer's Manual

Register
Bits Name
3 PREF Prefetchable memory indicator.
2:1 Type Relocatable anywhere in 32-bit address space.
0 MSI Memory space indicator. Hard-wire to 0 for memory space.
10.5.2.6

Base Address 1 Register

Register Name:
Block
0xC00000
Base Address:
PCI Base Address register for AHB memory space access. Format
Register Description:
as specified in the PCI 2.2 Local Bus Specification.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
RWBase
Register
Bits Name
31:2
RWBase Read/Write bits of Base Address register.
4
Read-only bits of Base Address register. Specifies fixed 16MB address
23:4 FixedBase
range for this BAR.
3 PREF Prefetchable memory indicator.
2:1 Type Relocatable anywhere in 32-bit address space.
0 MSI Memory space indicator. Hard-wire to 0 for memory space.
10.5.2.7

Base Address 2 Register

Register Name:
Block
0xC00000
Base Address:
PCI Base Address register for AHB memory space access. Format
Register Description:
as specified in the PCI 2.2 Local Bus Specification.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
RWBase
® ®
Intel IXP45X and Intel IXP46X Product Line of Network Processors
Develepor's Manual
554
® ®
Intel IXP45X and Intel
Description
Offset Address
FixedBase
Description
Offset Address
FixedBase
IXP46X Product Line of Network Processors—PCI Controller
pci_bar0 (Sheet 2 of 2)
pci_bar1
0x14
FixedBase
pci_bar1
pci_bar2
0x18
FixedBase
Reset PCI AHB
Value Access Access
1 RO
00 RO
0 RO
0x00000008
Reset Value
Access: (See below.)
8 7 6 5 4 3 2 1
Type
Reset PCI AHB
Value Access Access
0x00 RW
0x000 RO
1 RO
00 RO
0 RO
0x00000008
Reset Value
Access: (See below.)
8 7 6 5 4 3 2 1
Type
August 2006
Order Number: 306262-004US
RO
RO
RO
0
RW
RO
RO
RO
RO
0