zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 93

• Manufacturer Part Number: zl50411
• Description: Managed 9-port Fast Ethernet Switch With Private Vlan
• Manufacturer: Zarlink Semiconductor

The default setting of AGETIME_LOW/HIGH provides 300 seconds aging time. Aging time is based on the
following equation:
{AGETIME_HIGH,AGETIME_LOW} X (# of MAC entries in the memory X 800 µsec). Number of MAC entries = 4 K.
12.3.5.3
CPU Address: h0403
Accessed by CPU (R/W)
Note: ECR2[2] enable/disable learning for each port.
12.3.6
12.3.6.1
I²C Address: h04B; CPU Address: h0500
Accessed by CPU and I
(Group 5 Address) Buffer Control/QOS Group
Bit [0]:
Bit [0]:
Bit [1]:
Bit [2]:
Bit [3]:
Bit [4]:
Bit [5]
Bit [6]:
Bit [7]:
SE_OPMODE – Search Engine Operation Mode
QOSC – QOS Control
2
C (R/W)
Protocol filtering mode
0 – Inclusive (Default)
1 – Exclusive
Delete MAC report control
0 – Report MAC address deletion (MAC address is deleted from MCT after
aging time) (Default)
1 – Disable report MAC address deletion
Delete Control
0 – MAC address entry is removed when it is old enough to be aged (Default)
1 – Disable aging logic from removing MAC during aging
However, a report is still sent to the CPU in both cases, when bit [2] = 0
Enable RSVP Packet trapping
0 - Disable RSVP Packet trapping. (Default)
1 - Enable RSVP Packet trapping. IP Multicast also needs to be enabled for
this function.
Reserved
Disable MCT speed-up aging
0 – Enable speed-up aging when MCT resource is low. (Default)
1 – Disable speed-up aging when MCT resource is low.
Slow Learning
0 – Learning is performed independent of search demand (Default)
1 – Enable slow learning. Learning is temporary disabled when search
demand is high
Enable TX rate control (on RMAC ports only)
0 – Disable (Default)
1 – Enable
Reserved. Must be 0.
Zarlink Semiconductor Inc.
ZL50411
93
Data Sheet