IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
IP178C/IP178CH applications: (continued)
An 8-port router application
IF pin 53 EXTMII_EN is pulled high, then MII/RMII interface is enabled. IP178C/IP178CH is connected to
a CPU through MII/ RMII interface. IP178C/IP178CH works as an 8-port router. MII/RMII interface is set
to be PHY mode and 100 Mbps full duplex in this application.
Router
IP178C
/178CH
switch engine MAC8
MAC0 ..... MAC7
MII/RMII
(PHY mode)
MAC
CPU
PHY
PHY
PHY
0
1 .....
6
PHY
7
LAN port
Ethernet
PC
WAN port
Ethernet
ADSL
or
Cable modem
WAN to ISP
Copyright © 2004, IC Plus Corp.
14/93
June 21, 2007
IP178Cx-DS-R12