5. Multicast > Multicast Group Tables
115
Tsi576 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
5.2.2.3
Removing a Port from a Multicast Mask
In this example, the device attached to port four must be removed from the system. The following
register accesses are used to modify multicast masks one and two to stop port four from being a
multicast destination:
1.
Remove port 4 from multicast mask 1
•
Write the value 0x0001_0420 to the Multicast Mask Configuration Register
2.
Remove port 4 from multicast mask 2
•
Write the value 0x0002_0420 to the Multicast Mask Configuration Register
5.2.2.4
Querying a Multicast Mask
In this example, a system designer needs to determine which of the ports are included in multicast
mask 2. The following accesses are to be performed to provide this information:
1.
Verify that port 0 is included in mask 2
•
Write the value 0x0002_0000 to the Multicast Mask Configuration Register
•
Read the value 0x0002_0001 from the Multicast Mask Configuration Register
2.
Verify that port 1 is included in mask 2
•
Write the value 0x0002_0100 to the Multicast Mask Configuration Register
•
Read the value 0x0002_0101 from the Multicast Mask Configuration Register
3.
Verify that port 2 is included in mask 2
•
Write the value 0x0002_0200 to the Multicast Mask Configuration Register
•
Read the value 0x0002_0201 from the Multicast Mask Configuration Register
4.
Verify that port 3 is included in mask 2
•
Write the value 0x0002_0300 to the Multicast Mask Configuration Register
•
Read the value 0x0002_0301 from the Multicast Mask Configuration Register
5.
Verify that port 4 is not included in mask 2
•
Write the value 0x0002_0400 to the Multicast Mask Configuration Register
•
Read the value 0x0002_0400 from the Multicast Mask Configuration Register
6.
Verify that port 5 is included in mask 2
•
Write the value 0x0002_0500 to the Multicast Mask Configuration Register
•
Read the value 0x0002_0501 from the Multicast Mask Configuration Register
The accesses to the
“RapidIO Multicast Mask Configuration Register” on page 265
can be
performed in any order.
In each case, the write operation setting up the ‘Write to Verify’ operation must be performed
before the subsequent read to check the Port Present bit status. The individual multicast
masks can be queried in any order.
