BCM5720 Register MapBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 590
BCM5720 Register Map
The BCM5720 internal register map of each MAC unit is shown in Table 162. This is the Host Standard View of
BAR1 & BAR2.
TX MBUF 29KB 0x0002C800-
0x00033BFF
0x0102C800-
0x01033BFF
0x0002C800-
0x00033BFF
0x0002C800-
0x00033BFF
Unmapped 15M
+817KB
0x00033C00-
0x00FFFFFF
0x01033C00-
0x01FFFFFF
0x00033C00-
0x00FFFFFF
0x00033C00-
0x00FFFFFF
RXCPU ROM 1.2KB 0x40000000-
0x400004FF
–––
PCI Configuration 256B 0xC0000000-
0xC00000FF
0x00000000-
0x000000FF
0x00000000-
0x000000FF
0x00000000-
0x000000FF
High Priority
Mailbox
512B – 0x00000200-
0x000003FF
0x00000200-
0x000003FF
0x00005800-
0x000059FF
Functional
Registers
31KB 0xC0000400-
0xC0007FFF
0x00000400-
0x00007FFF
0x00000400-
0x00007FFF
0x00000100-
0x00007FFF
Mailboxes 1MB – 0x00100000-
0x001FFFFF
––
Scratch Pad 28KB 0xC0030000-
0xC0036FFF
0xC0030000-
0xC0036FFF
0xC0030000-
0xC0036FFF
0xC0030000-
0xC0036FFF
Unmapped 4KB 0xC0037000-
0xC0037FFF
0xC0037000-
0xC0037FFF
0xC0037000-
0xC0037FFF
0xC0037000-
0xC0037FFF
RXCPU ROM
Slave Access
8KB 0xC0038000-
0xC009FFF
0xC0038000-
0xC0039FFF
0xC0038000-
0xC0039FFF
0xC0038000-
0xC0039FFF
Send RCB0 NIC
Address
4B 0x00004000-
0x0000400F
0x01004000-
0x0100400F
0x00004000-
0x0000400F
0x00004000-
0x0000400F
Receive Standard
Producer RCB0
NIC Address
4B 0x00040000-
0x0004000F
0x01040000-
0x0104000F
0x00040000-
0x0004000F
0x00040000-
0x0004000F
Receive Jumbo
Producer RCB0
NIC Address
4B 0x00044400-
0x0004440F
0x01044400-
0x0104440F
0x00044400-
0x0004440F
0x00044400-
0x0004440F
Table 162: BCM5720 Register Map
Block Name Block Range Sub-Block Range Description
HP Mail Box 0x0000 – 0x01FF 0x0000 – 0x01FF Unused {Legacy – PCIe Configuration
Register Shadow}
0x0200 – 0x03FF 0x0200 – 0x03FF High Priority Mail Boxes
Table 161: BCM5720 Memory Map (Cont.)
Region Size NIC CPU View Host Flat View
Host Standard
View (Offset)
Host UNDI View
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