zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 75

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

12.3.1.2
I²C Address: h00A+n; CPU Address: h0001+2n (n = port number)
Accessed by CPU and I²C (R/W)
Bit [3]
Bit [4]
Bit [5]
Bits [7:6]
Bit [0]:
Bit [1]:
Bit [2]:
Bit [3]:
Bit [4]
ECR2Pn: Port n Control Register
Asymmetric Flow Control Enable.
1 - MII Port Up
0 - MII Port Down
Note: Bit [4] must be ‘1’.
Must be ‘1’.
0 – Disable asymmetric flow control (Default)
1 – Enable Asymmetric flow control
When this bit is set and flow control is on (bit [0] = 0), the device does not send out
flow control frames, but it’s receiver interprets and processes flow control frames.
SS - Spanning tree state (IEEE 802.1D spanning tree protocol)
00 - Blocking:
01 - Listening:
10 - Learning:
11 - Forwarding:
0: Disable (Default)
1: All untagged frames from this port are discarded or follow security option when
security is enable
Filter Tag frame
0: Disable (Default)
1: All tagged frames from this port are discarded or follow security option when
security is enable
0: Learning is enabled on this port (Default)
1: Learning is disabled on this port
Rate control timer select (RMAC ports only)
0: 10 microsecond refreshing time (Default)
1: 1 millisecond refreshing time
Force VLAN Tag Out
0: Disable (Default)
1: Enable
If this feature is enabled, a packet leaving the device will ALWAYS have a VLAN
tag. Only applicable in tagged-based VLAN mode (PVMODE[0]=’1’). In port-based
VLAN mode (PVMODE[0]=’0’), this bit must be 0.
Filter untagged frame
Learning Disable
The configuration in ECR1Pn[2:0] is used for (speed/duplex/flow control)
setup.
Frame is dropped
Frame is dropped
Frame is dropped. Source MAC address is learned.
Frame is forwarded. Source MAC address is learned. (Default)
Zarlink Semiconductor Inc.
ZL50411
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Data Sheet