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IP178C
Preliminary Data Sheet
IP178C applications: (continued)
An 8-port router application
IF pin 53 EXTMII_EN is pulled high, then MII/RMII interface is enabled. IP178C is connected to a CPU
through MII/ RMII interface. IP178C works as an 8-port router. MII/RMII interface is set to be PHY mode
and 100 Mbps full duplex in this application.
MII/RMII
PHY
0
PHY
1
PHY
6
PHY
7
IP178C
MAC
CPU
(PHY mode)
ADSL
or
Cable modem
WAN to ISP
PC
Ethernet
Ethernet
Router
WAN
port
LAN port
MAC0
MAC7
MAC8
switch engine
.....
.....
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October 27, 2005
Copyright © 2004, IC Plus Corp.
IP178C-DS-R09