
IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
74/93
June 21, 2007
Copyright © 2004, IC Plus Corp.
IP178Cx-DS-R12
PHY
MII
ROM
R/W
Description
Default
Cos and port base VLAN register 5
5[10]
75[2]
Port5 Class of service enable
1: enable, 0: disabled (default)
Packets with high priority tag from port5 are handled as high
priority packets.
1’b0
5[9]
75[1]
Port5 set to be high priority port
1: enable, 0: disabled (default)
Packets received from port5 are handled as high priority
packets.
1’b0
31
5[8:0]
75[0],
74[7:0]
Port5 VLAN look up table
The register defines the ports in the same VLAN as port5. The
bit 0~8 are corresponding to port 0~8.
1: a port is in the same VLAN as port5
0: a port is not in the same VLAN as port5
Bit0=1, port 0 and port5 are in the same VLAN;
Bit1=1, port 1 and port5 are in the same VLAN;
Bit2=1, port 2 and port5 are in the same VLAN;
Bit3=1, port 3 and port5 are in the same VLAN;
Bit4=1, port 4 and port5 are in the same VLAN;
Bit5=1, don’t care;
Bit6=1, port 6 and port5 are in the same VLAN;
Bit7=1, port 7 and port5 are in the same VLAN;
Bit8=1, MII port and port5 are in the same VLAN;
9’h1ff