8 / 60 page
IP175A LF
Preliminary Data Sheet
8/60
February 20, 2006
Copyright © 2004, IC Plus Corp.
IP175A LF-DS-R08
3
Pin Descriptions
Type
Description
I
Input pin
O
Output pin
IPL
Input pin with internal pull low
IPH
Input pin with internal pull high
Type
Description
IPL1
Input pin with internal pull low 22.8k ohm
IPH1
Input pin with internal pull high 22.8k ohm
IPL2
Input pin with internal pull low 92.6k ohm
IPH2
Input pin with internal pull high 113.8k ohm
Pin no.
Label
Type
Description
LED pins used as initial setting mode during reset
102
BF_STM_EN
IPL1
Broadcast storm protection enable
1: enable,
0: disable (default)
101
BK_EN
IPH1
Backpressure enable
1: enable (default),
0: disable
This pin doesn’t set the flow control of MII0 port. MAC_X_EN
sets the flow control of MII0 port.
100
X_EN
IPH1
IEEE802.3X enable
1: enable (default),
0: disable
This pin doesn’t set the flow control of MII0 port. MAC_X_EN
sets the flow control of MII0 port.
97
UPDATE_R4_EN
IPL1
Change capability enable
A full duplex port will change its capability to half duplex, if the
remote full duplex port does not support IEEE802.3x then this
function is enabled. It should be pulled low for normal operation.
1: enable,
0: disable (default)
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