
Byte Address Hard IP Configuration Space Register Corresponding Section in PCIe Specification
0x008 Class Code, Revision ID Type 0 Configuration Space Header
Type 1 Configuration Space Header
The Type 1 Configuration Space is not
available for the Avalon-MM with DMA
interface
0x00C BIST, Header Type, Primary Latency Timer,
Cache Line Size
Type 0 Configuration Space Header
Type 1 Configuration Space Header
The Type 1 Configuration Space is not
available for the Avalon-MM with DMA
interface
0x010 Base Address 0 Base Address Registers
0x014 Base Address 1 Base Address Registers
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
UG-01154
2014.12.18
Correspondence between Configuration Space Registers and the PCIe Specification
5-3
Registers
Altera Corporation
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