12. Serial RapidIO Registers > IDT-Specific RapidIO Registers
319
Tsi576 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
12.8.8
RapidIO Multicast Write ID x Register
This register contains the Multicast ID, which is associated to the multicast mask registers. The switch
supports eight multicast groups and the Multicast ID registers for each multicast group must contain
unique values.
These registers are implemented globally, and are visible from every ingress port.
Register name: RIO_MC_ID{0..7}
Reset value: 0x0000_0000
Register offset: 10300, 10304, 10308, 1030C, 10310, 10314,
10318, 1031C
Bits
0
1
2
3
4
5
6
7
00:7
MC_EN
LARGE_
SYS
Reserved
8:15
Reserved
16:23
MC_ID[15:8]
24:31
MC_ID[7:0]
Bits
Name
Description
Type
Reset
Value
0
MC_EN
Multicast can be disabled by setting this bit.
0 = Disabled
1 = Enabled
R/W
0
1
LARGE_
SYS
This field defines multicast destination ID (MC_ID) in the Large or Small
system. The MC_ID of Small system is not a subset of MC_ID of Large
system, but both systems can co-exist together.
0 = Small system
1 = Large system
R/W
0
2:15
Reserved
N/A
R
0
16:31
MC_ID
This field defines the multicast destination ID for which the associated
multicast mask is activated for this extended features block.
R/W
0x0000
When using these registers, it is important that no multiple, identical entries exist because an
addition of an association of destination ID does not delete the association of a duplicate
destination ID to a different mask.
