
IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
71/111
Mar 09, 2007
Copyright © 2004, IC Plus Corp.
IP175C/IP175CH-DS-R14
PHY
MII
ROM
R/W
Description
Default
20.7
17.7
R/W Port3 VLAN look up table
Port5 and port3 are in the same VLAN
1’b1
Port3 Class of service enable
1: enable, 0: disabled (default)
Packets with high priority tag from port3 are handled as high
priority packets.
Default value
TEST2=0
TEST2=1
P4EXT=1
P4EXT=0
20.6
17.6
R/W
0
Pin63 COS_EN (0)
0
*
20.5
17.5
R/W Port3 high priority port enable
1: enable, 0: disabled (default)
Packets received from port3 are handled as high priority packets.
1’b0
Port3 VLAN look up table
The register defines the ports in the same VLAN as port3. The
bit 0~5 are corresponding to port 0~5.
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 1 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
Default value
Testmode38, 39
Testmode47
Others
29
20[4:0]
17[4:0]
R/W
5'b11000
5'b01000
5'b11111
*