10. Registers > RapidIO Capability Registers (CARs)
CPS-1848 User Manual
221
June 2, 2014
Formal Status
This document is confidential and is subject to an NDA.
Integrated Device Technology
10.3.10 Switch Multicast Information CAR
Register Name: SWITCH_MULT_INF_CAR
Reset Value: 0x00FF_0028
Register Offset: 0x000038
Bits
0
1
2
3
4
5
6
7
00:07
BLK
PER_PORT
MAX_DESTID
08:15
MAX_DESTID
16:23
MCAST_MASK
24:31
MCAST_MASK
Bits
Name
Description
Type
Reset
Value
0
BLK
Block association support
0 = Not supported
FR
0
1
PER_PORT
Per Ingress port association support
0 = Not supported
FR
0
2:15
MAX_DESTID
The maximum number of destIDs that can be associated with a
multicast mask.
• Revision C = 0x0FF (256 destIDs)
• Revision A/B = 0x100 (257 destIDs). This value incorrectly
indicates that 257 destIDs can be mapped to a multicast mask;
however, the value should be 0x0FF (256 destIDs)
FR
0x0FF
16:31
MCAST_MASK
The number of multicast masks that are supported by the device.
For Revision C, the reset value is based on the number of
supported masks, 40, or 0x0028.
For Revision A/B, the reset value is based on 40 masks x
18 ports = 720 masks, or 0x02D0.
FR
0x0028