zl50400 Zarlink Semiconductor, zl50400 Datasheet - Page 64

• Manufacturer Part Number: zl50400
• Description: Lightly Managed/unmanaged 9-port 10/100 M Ethernet Switch
• Manufacturer: Zarlink Semiconductor

12.3.1.2
I²C Address: 00A+n; CPU Address:0001+2n (n = port number)
Accessed by CPU and I²C (R/W)
Bit [0]:
Bit [1]:
Bit [2]:
Bit [3]:
Bit [4]
Bit [5]
Bits [7:6]
ECR2Pn: Port n Control Register
SS - Spanning tree state (IEEE 802.1D spanning tree protocol)
00 - Blocking:
01 - Listening:
10 - Learning:
11 - Forwarding:
Filter untagged frame
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
Learning Disable
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
0
Reserved. Must be 0.
Frame is dropped
Frame is dropped
Frame is dropped. Source MAC address is learned.
Frame is forwarded. Source MAC address is learned. (Default)
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ZL50400
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Data Sheet