Broadcom BCM5722 - Figure 49: Techniques for Accessing BCM5722 Ethernet Controller Local Memory

Programmer’s Guide BCM5722
10/15/07
Broadcom Corporation
Document 5722-PG101-R Configuration Space Page 128
Figure 49: Techniques for Accessing BCM5722 Ethernet Controller Local Memory
Host Memory Address Space
Physical
Memory
0x00000000
PCI Cfg Space Registers
(Shadow Copy)
High Priority Mailboxes
0x00000400
0x00000200
0x00110000
General Mailbox 1-8
Rx BD Return Ring 1-16
Consumer Index
Tx BD Ring 1-16
Host Producer Index
Tx BD Ring 1-16
NIC Producer Index
Memory
0x00008000
0x00100000
Rx BD Send Producer
Index (Jumbo, Std, Mini)
0x00130000
0x00140000
0x00180000
0x001C0000
0x01000000
0
x01FFFFFF
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Local Memory Address Spac
e
0x00020000
0x00000000
Device Internal
Memory
Device
External
Memory
Registers
Reserved
Memory
Window
Reserved
IRQ Mailbox 0-3
Memory Window
Memory Window
Window may be
located anywhere
Window may be
located anywhere