Byte Address Hard IP Configuration Space Register Corresponding Section in PCIe Specification
0x018 Base Address 2
Secondary Latency Timer, Subordinate Bus
Number, Secondary Bus Number, Primary
Bus Number
Base Address Registers
Secondary Latency Timer, Type 1
Configuration Space Header, Primary
Bus Number
0x01C Base Address 3
Secondary Status, I/O Limit, I/O Base
Base Address Registers
Secondary Status Register ,Type 1
Configuration Space Header
0x020 Base Address 4
Memory Limit, Memory Base
Base Address Registers
Type 1 Configuration Space Header
0x024 Base Address 5
Prefetchable Memory Limit, Prefetchable
Memory Base
Base Address Registers
Prefetchable Memory Limit, Prefetchable
Memory Base
0x028 Reserved
Prefetchable Base Upper 32 Bits
N/A
Type 1 Configuration Space Header
0x02C Subsystem ID, Subsystem Vendor ID
Prefetchable Limit Upper 32 Bits
Type 0 Configuration Space Header
Type 1 Configuration Space Header
0x030 I/O Limit Upper 16 Bits, I/O Base Upper 16
Bits
Type 0 Configuration Space Header
Type 1 Configuration Space Header
0x034 Reserved, Capabilities PTR Type 0 Configuration Space Header
Type 1 Configuration Space Header
0x038 Reserved N/A
0x03C Interrupt Pin, Interrupt Line
Bridge Control, Interrupt Pin, Interrupt Line
Type 0 Configuration Space Header
Type 1 Configuration Space Header
0x050 MSI-Message Control Next Cap Ptr
Capability ID
MSI and MSI-X Capability Structures
0x054 Message Address MSI and MSI-X Capability Structures
0x058 Message Upper Address MSI and MSI-X Capability Structures
0x05C Reserved Message Data MSI and MSI-X Capability Structures
UG-01097_avmm
2014.12.15
Correspondence between Configuration Space Registers and the PCIe Specification
5-3
Registers
Altera Corporation
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