zl50416 Zarlink Semiconductor, zl50416 Datasheet - Page 56

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

Bit[0]:
Bit[1]:
Bit[2]:
Bit[3]:
Bit [5:4:]
Bit[7:6]
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1. If the source MAC address of the incoming packet is in the MAC table and is
A MAC address is defined as secure when its entry at MAC table has static status
and bit 0 is set to 1. MAC address bit 0 (the first bit transmitted) indicates whether
the address is unicast or multicast. As source addresses are always unicast bit 0
is not used (always 0). ZL50416 uses this bit to define secure MAC addresses.
2. If the port is set as learning disable and the source MAC address of the incom-
3. If the port is configured to filter untagged frames and an untagged frame
If one of these three conditions occurs, the packet will be handled according to
one of the following specified options:
•
Filter untagged frame (Default 0)
Filter Tag frame (Default 0)
Learning Disable (Default 0)
Must be ‘1’
QOS mode selection (Default 00)
Determines which of the 4 sets of QoS settings is used for 10/100 ports.
Note that there are 4 sets of per-queue byte thresholds, and 4 sets of WFQ
ratios programmed. These bits select among the 4 choices for each 10/100
port. Refer to QOS Application Note.
Security Enable (Default 00). The ZL50416 checks the incoming data for
one of the following conditions:
CPU installed
- 0: Disable
- 1: All untagged frames from this port are discarded or follow security option when
- 0: Disable
- 1: All tagged frames from this port are discarded or follow security option when
- 1 Learning is disabled on this port
- 0 Learning is enabled on this port
- 00: select class byte limit set 0 and classes WFQ credit set 0
- 01: select class byte limit set 1 and classes WFQ credit set 1
- 10: select class byte limit set 2 and classes WFQ credit set 2
- 11: select class byte limit set 3 and classes WFQ credit set 3
• 00 – Disable port security
• 01 – Discard violating packets
• 10 – Send packet to CPU and destination port
• 11 – Send packet to CPU only
defined as secure address but the ingress port is not the same as the port
associated with the MAC address in the MAC table.
ing packet is not defined in the MAC address table.
arrives or if the port is configured to filter tagged frames and a tagged frame
arrives.
security is enable
security is enable
Zarlink Semiconductor Inc.
ZL50416
56
Data Sheet