IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
72/111
Mar 09, 2007
Copyright © 2004, IC Plus Corp.
IP175C/IP175CH-DS-R14
PHY
MII
ROM
R/W
Description
Default
21.15
18.7
R/W Port4 VLAN look up table
Port5 and port4 are in the same VLAN
1’b1
Port4 Class of service enable
1: enable, 0: disabled (default)
Packets with high priority tag from port4 are handled as high
priority packets.
Default value
TEST2=0
TEST2=1
P4EXT=1
P4EXT=0
21.14
18.6
R/W
0
Pin63 COS_EN (0)
0
*
Port4 high priority port enable
1: enable, 0: disabled (default)
Packets received from port4 are handled as high priority packets.
Default value
TEST2=0
TEST2=1
P4EXT=1
P4EXT=0
21.13
18.5
R/W
0
Pin 64 P4_HIGH (0) 0
*
Port4 VLAN look up table
The register defines the ports in the same VLAN as port4. The
bit 0~5 are corresponding to port 0~5.
1: a port is in the same VLAN as port4
0: a port is not in the same VLAN as port4
Bit8=1, port 0 and port4 are in the same VLAN;
Bit9=1, port 1 and port4 are in the same VLAN;
Bit10=1, port 2 and port4 are in the same VLAN;
Bit11=1, port 3 and port4 are in the same VLAN;
Bit12=1, don’t care;
Default value
Testmode38, 39
Testmode47
Others
29
21[12:8] 18[4:0]
R/W
5'b10001
5'b10000
5'b11111
*
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