21 / 60 page

IP175A LF
Preliminary Data Sheet
4.3
MII0 MAC mode
MII0 works at MAC mode if MII_MAC_MOD is pulled high. MII0 is an interface between port4 of internal
switch controller and external PHY. It replaces an Ethernet PHY with a user specified PHY in this application.
The speed and duplex of MII0 are configured by P4_FORCE, P4_FORCE100 and P4_FORCE_FULL.
IP175A LF doesn’t read the status of external PHY via SMI at this mode.
MI I0
PH Y
PH Y
0
PH Y
1
PH Y
2
PH Y
3
PH Y
4
( u nus ed )
I P 175A LF
( M A C m ode )
por t 0
por t 1
por t 2
por t 3
por t 4
sw it ch co n t r o lle r
21/60
February 20, 2006
Copyright © 2004, IC Plus Corp.
IP175A LF-DS-R08