BCM5720 Memory Map
BCM5718 Programmer’s Guide
Broadcom
®
January 29, 2016 • 5718-PG108-R
Page 589
BCM5720 Memory Map
The BCM5720 internal memory map is shown in
Table 161: BCM5720 Memory Map
Region
Size
NIC CPU View
Host Flat View
Host Standard
View (Offset)
Host UNDI View
Unmapped 256B
0x00000000-
0x000000FF
0x01000000-
0x010000FF
0x00000000-
0x000000FF
0x00000000-
0x000000FF
Send Ring [1]
RCB
16B
0x00000100-
0x0000010F
0x01000100-
0x0100010F
0x00000100-
0x0000010F
0x00000100-
0x0000010F
Send Ring [2 –
16] RCBs
240B
0x00000110-
0x000001FF
0x01000110-
0x010001FF
0x00000110-
0x000001FF
0x00000110-
0x000001FF
Receive Return
Ring0 RCB
16B
0x00000200-
0x0000020F
0x01000200-
0x0100020F
0x00000200-
0x0000020F
0x00000200-
0x0000020F
Receive Return
Ring1 RCB
16B
0x00000210-
0x0000021F
0x01000210-
0x0100021F
0x00000210-
0x0000021F
0x00000210-
0x0000021F
Receive Return
Ring2 RCB
16B
0x00000220-
0x0000022F
0x01000220-
0x0100022F
0x00000220-
0x0000022F
0x00000220-
0x0000022F
Receive Return
Ring3 RCB
16B
0x00000230-
0x0000023F
0x01000230-
0x0100023F
0x00000230-
0x0000023F
0x00000230-
0x0000023F
VRQ Receive
Return Ring
RCBs – [4 – 16]
208B
0x00000240-
0x0000030F
0x01000240-
0x0100030F
0x00000240-
0x0000030F
0x00000240-
0x0000030F
Unmapped
2.3KB
0x00000420-
0x00000B4F
0x01000420-
0x01000B4F
0x00000420-
0x00000B4F
0x00000420-
0x00000B4F
Software
Gencomm
1KB
0x00000B50-
0x00000F4F
0x01000B50-
0x01000F4F
0x00000B50-
0x00000F4F
0x00000B50-
0x00000F4F
Unmapped
12KB –
176B
0x00000F50-
0x00003FFF
0x01000F50-
0x01003FFF
0x00000F50-
0x00003FFF
0x00000F50-
0x00003FFF
Unmapped 32KB
0x01004000-
0x0100FFFF
0x01004000-
0x0100FFFF
0x00004000-
0x0000FFFF
0x00004000-
0x0000FFFF
RX MBUF
32KB
0x00010000-
0x00019FFF
0x01010000-
0x01019FFF
0x00010000-
0x00019FFF
0x00010000-
0x00019FFF
Unmapped
32KB
0x0001A000-
0x0001FFFF
0x0101A000-
0x0101FFFF
0x0001A000-
0x0001FFFF
0x0001A000-
0x0001FFFF
SBD Cache
16KB
0x00020000-
0x00023FFF
0x00020000-
0x00023FFF
0x00020000-
0x00023FFF
0x00020000-
0x00023FFF
Std RBD Cache
17KB
0x00024000-
0x000283FF
0x01024000-
0x010283FF
0x00024000-
0x000283FF
0x00024000-
0x000283FF
Jumbo RBD
Cache
17KB
0x00028400-
0x0002C7FF
0x01028400-
0x0102C7FF
0x00028400-
0x0002C7FF
0x00028400-
0x0002C7FF