MSI-X PlumbingBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 252
Ta b le 9 9 depicts the implemented address regions of BAR4 and BAR5 in the BCM5718 family. Only two
structures are present: the MSI-X Table and the Pending Bit Array in the offsets shown in the table. Any host
accesses to the non-implemented addresses in these BARs must be gracefully handled by the controller; i.e.,
Reads return 0x0 and Writes have no effect whatsoever on the MAC.
Table 99: MSI-X Table and PBA Structures in BCM5718 Family
MSI-X Table
Entry#
DW3 Content
(32-bit)
DW2 Content
(32-bit)
DW1 Content
(32-bit)
DW0 Content
(32-bit)
BAR4 and BAR5
Offset
N/A Reserved Bits [127:17] (PBA) Pending Bits[16:0] 0x120
Reserved Entry …………. …………. …………. …………. 0x110
16 Vec#16 Control Msg#16 Data Msg#16 Addr H Msg#16 Addr L 0x100
15 Vec#15 Control Msg#15 Data Msg#15 Addr H Msg#15 Addr L 0xF0
……
……
……
……
……
……
……
……
……
……
……
……
4 Vec#4 Control Msg#4 Data Msg#4 Addr H Msg#4 Addr L 0x40
3 Vec#3 Control Msg#3 Data Msg#3 Addr H Msg#3 Addr L 0x30
2 Vec#2 Control Msg#2 Data Msg#2 Addr H Msg#2 Addr L 0x20
1 Vec#1 Control Msg#1 Data Msg#1 Addr H Msg#1 Addr L 0x10
0 Vec#0 Control Msg#0 Data Msg#0 Addr H Msg#0 Addr L 0x00
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