zl50405 Zarlink Semiconductor, zl50405 Datasheet - Page 86
zl50405
Manufacturer Part Number
zl50405
Description
Managed5-port 10/100 M Ethernet Switch
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50405.pdf
(132 pages)
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12.3.5
12.3.5.1
I²C Address h049; CPU Address:h400
Accessed by CPU and I²C (R/W)
Used in conjuction with AGETIME_HIGH. The ZL50405 removes the MAC address from the data base and sends a
Delete MAC Address Control Command to the CPU.
12.3.5.2
I²C Address h04A; CPU Address h401
Accessed by CPU and I²C (R/W)
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:h403
Accessed by CPU (R/W)
Note: ECR2[2] enable/disable learning for each port.
Bits [7:0]:
Bits [7:0]:
(Group 4 Address) Search Engine Group
Bit [0]:
Bit [1]:
Bit [2]:
Bit [3]:
Bit [4]:
AGETIME_LOW – MAC address aging time Low
AGETIME_HIGH –MAC address aging time High
SE_OPMODE – Search Engine Operation Mode
Low byte of the MAC address aging timer (Default 0x5C)
High byte of the MAC address aging timer (Default 0x00)
Reserved. Must be 0.
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.
Zarlink Semiconductor Inc.
ZL50405
86
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