IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
72/93
June 21, 2007
Copyright © 2004, IC Plus Corp.
IP178Cx-DS-R12
PHY
MII
ROM
R/W
Description
Default
Cos and port base VLAN register 3
3[10]
71[2]
Port3 Class of service enable
1: enable, 0: disabled (default)
Packets with high priority tag from port3 are handled as high
priority packets.
1’b0
3[9]
71[1]
Port3 set to be high priority port
1: enable, 0: disabled (default)
Packets received from port3 are handled as high priority
packets.
1’b0
31
3[8:0]
71[0],
70[7:0]
Port3 VLAN look up table
The register defines the ports in the same VLAN as port3. The
bit 0~8 are corresponding to port 0~8.
1: a port is in the same VLAN as port3
0: a port is not in the same VLAN as port3
Bit0=1, port 0 and port3 are in the same VLAN;
Bit1=1, port 3 and port3 are in the same VLAN;
Bit2=1, port 2 and port3 are in the same VLAN;
Bit3=1, don’t care;
Bit4=1, port 4 and port3 are in the same VLAN;
Bit5=1, port 5 and port3 are in the same VLAN;
Bit6=1, port 6 and port3 are in the same VLAN;
Bit7=1, port 7 and port3 are in the same VLAN;
Bit8=1, MII port and port3 are in the same VLAN;
9’h1ff
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