beautypg.com

Altera Arria V Hard IP for PCI Express User Manual

Page 248

background image

17–26

Chapter 17: Testbench and Design Example

Root Port BFM

Arria V Hard IP for PCI Express

December 2013

Altera Corporation

User Guide

If addr_map_4GB_limit is 0, the resulting memory space map is shown in

Figure 17–6

.

Figure 17–6. Memory Space Layout—No Limit

Root Complex Shared

Memory

0x0000 0000

Configuration Scratch

Space

Used by BFM routines

not writable by user calls

or endpoint

0x001F FF80

BAR Table

Used by BFM routines

not writable by user calls

or endpoint

0x001F FFC0

Endpoint Non

-

Prefetchable Memory

Space BARs

Assigned Smallest to

Largest

0x0000 0001 0000 0000

Endpoint Memory Space

BARs

(

Prefetchable 32 bit

)

Assigned Smallest to

Largest

Unused

BAR size dependent

BAR size dependent

Endpoint Memory Space

BARs

(

Prefetchable 64 bit

)

Assigned Smallest to

Largest

Unused

BAR size dependent

0xFFFF FFFF FFFF FFFF

0x0020 0000

Addr