zl50416 Zarlink Semiconductor, zl50416 Datasheet - Page 67

• Manufacturer Part Number: zl50416
• Description: Managed 16-port 10/100 M + 2-port 1 G Ethernet Switch
• Manufacturer: Zarlink Semiconductor

13.6.14
CPU Address:h20F
Accessed by CPU, serial interface (R/W)
Bit [4:0]
13.6.15
Multicast Hash registers are used to distribute multicast traffic. 16 registers are used to form a 4-entry array; each
entry has 27 bits, with each bit representing one port. Any port not belonging to a trunk group should be
programmed with 1. Ports belonging to the same trunk group should only have a single port set to “1” per entry.
The port set to “1” is picked to transmit the multicast frame when the hash value is met.
13.6.15.1
CPU Address:h220
Accessed by CPU, serial interface (R/W)
Bit [7:0] (Default FF)
13.6.15.2
CPU Address:h221
Accessed by CPU, serial interface (R/W)
Bit [7:0] (Default FF)
13.6.15.3
CPU Address:h223
Accessed by CPU, serial interface (R/W)
Bit [7:0] (Default FF)
TRUNK1_HASH3 – Trunk group 1 hash result 3 destination port number
Multicast Hash Registers
Multicast_HASH0-0 – Multicast hash result 0 mask byte 0
Multicast_HASH0-1 – Multicast hash result 0 mask byte 1
Multicast_HASH0-3 – Multicast hash result 0 mask byte 3
Hash result 1 destination port number (Default 07)
Hash Value =0
Hash Value =1
Hash Value =2
Hash Value =3
HASH0_3
HASH1_3
HASH2_3
HASH3_3
Zarlink Semiconductor Inc.
ZL50416
P
o
r
t
24
C
P
U
67
HASH0_1
HASH1_1
HASH2_1
HASH3_1
P
o
r
t
1
5
P
o
r
t
8
HASH0_0
HASH1_0
HASH2_0
HASH3_0
P
o
r
t
7
P
o
r
t
0
Data Sheet