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IP175A LF
Preliminary Data Sheet
4
Functional Description
4.1
5-port switch application
IP175A LF works as a 5 TP port auto MDI-MDIX switch when all fibers and MII function are disabled. In
this case, both FXSDx and P4EXT should be pulled low. Each port can be with auto-negotiation or force
mode in this application.
An example to illustrate the configuration setting of port4 when P4EXT is pulled low and MII is disabled
Port
TP
FX
Nway
Capability
FXSD4
P4_FORCE
P4_FORCE100 P4_FORCE_FULL
4
V
--
V
All capability
0
0
0
0
4
V
--
V
10M/ full
0
1
0
1
4
V
--
--
100M/ half
0
1
1
0
4
V
--
V
100M/ full
0
1
1
1
4
--
V
--
100M half
> 0.6v
1
1
0
4
--
V
--
100M full
> 0.6v
1
1
1
Note:
1. The configuration not in the table is inhibited.
2. “--“: Not applicable
PH Y
0
PH Y
1
PH Y
2
PH Y
3
IP 1 75A L F
po rt 0
po rt 1
po rt 2
po rt 3
sw itch co n tro lle r
PH Y
4
port 4
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February 20, 2006
Copyright © 2004, IC Plus Corp.
IP175A LF-DS-R08
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