IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
21/93
June 21, 2007
Copyright © 2004, IC Plus Corp.
IP178Cx-DS-R12
Pin description (continued)
Pin no.
Label
Type
Description
Advance operation parameter setting of switch engine
100
P6_7_HIGH
IPL1
/O
Port6 port7 are set to be high priority port
Packets received from port6 or port7 are handled as high priority
packets if the function is enabled.
1: enable,
0: disabled (default)
It is an input signal during reset and its value is latched at the
end of reset. It acts as a link LED of port 0 after reset.
99
COS_EN
IPL1
/O
Class of service enable
Packets with high priority tag are handled as high priority
packets if the function is enabled.
1: enable,
0: disabled (default)
It is an input signal during reset and its value is latched at the
end of reset. It acts as a link LED of port 1 after reset.
Turn on VLAN
Enable a specific configuration of port base VLAN.
0: disabled (default),
1: enable
IP178C/IP178CH are separated into 7 VLANs if this function is
enabled and MII port is disabled.
The VLAN group is as follows.
Pin 53 EXTMII_EN=0
Pin 53EXTMII_EN=1
VLAN 1
port 0, port 7
port 0~7 & MII port
VLAN 2
port 1, port 7
port 0~7 & MII port
VLAN 3
port 2, port 7
port 0~7 & MII port
VLAN 4
port 3, port 7
port 0~7 & MII port
VLAN 5
port 4, port 7
port 0~7 & MII port
VLAN 6
port 5, port 7
port 0~7 & MII port
VLAN 7
port 6, port 7
port 0~7 & MII port
VLAN 8
NA
port 0~7 & MII port
79
VLAN_ON
IPL1
/O
It is an input signal during reset and its value is latched at the
end of reset. It acts as a full duplex LED of port 3 after reset.
The configuration can be updated by programming EEPROM
register. Please refer to EEPROM register 66~78 for detail
information.
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