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IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
13/111
Mar 09, 2007
Copyright © 2004, IC Plus Corp.
IP175C/IP175CH-DS-R14
Pin description (continued)
Pin No.
Label
Type
Description
LED pins used as initial setting (the setting is latched at the end of reset)
102
BF_STM_EN
IPL1
Broadcast storm protection enable
1: enable
0: disable (default)
A port begins to drop packets if it receives broadcast packets
more than the threshold defined in MII register 30.11[15:14]
bq_stm_thr_sel [1:0] or EEPROM register 59[7:6]
101
LINK_Q
IPH1
Link quality
1: enable (default)
0: disable
When the function is enabled, besides link on/off status, activity
status, link LED shows link quality. The link LED will be flash (on:
2sec / off: 2sec) when the SNR of received signal is lower than
the desired value for normal operation.
100
X_EN
IPH1
IEEE802.3X/ back pressure enable
1: enable (default)
0: disable
This pin doesn’t set the flow control of MII0 port. Pin 67
MAC_X_EN sets the flow control of MII0 port.
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