Base Address 3 Register; Base Address 4 Register - Intel IXP45X Developer's Manual

®
PCI Controller—Intel IXP45X and Intel
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.
10.5.2.8

Base Address 3 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.
10.5.2.9

Base Address 4 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
August 2006
Order Number: 306262-004US
®
IXP46X Product Line of Network Processors
Description
Offset Address
FixedBase
Description
Offset Address
FixedBase
®
Intel IXP45X and Intel
pci_bar2
pci_bar3
0x1c
Reset Value
8 7
FixedBase
pci_bar3
pci_bar4
0x20
Reset Value
8 7
FixedBase
®
IXP46X Product Line of Network Processors
Reset PCI AHB
Value Access Access
0x00 RW RW
0x000 RO RO
1 RO RO
00 RO RO
0 RO RO
0x00000008
Access: (See below.)
6 5 4 3 2 1 0
Type
Reset PCI AHB
Value Access Access
0x00 RW RW
0x000 RO RO
1 RO RO
00 RO RO
0 RO RO
0x00000008
Access: (See below.)
6 5 4 3 2 1 0
Type
Develepor's Manual
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