IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
1/93
June 21, 2007
Copyright © 2004, IC Plus Corp.
IP178Cx-DS-R12
8 Port 10/100 Ethernet Integrated Switch
Features
General Description
Support 1k MAC address
512k bits packet buffer memory
Support auto-polarity for 10 Mbps
Support filter/ forward special DA option
Support broadcast storm protection
Auto MDI-MDIX option
Support port security option to lock the first
MAC address
Support one MII/RMII port, which works at 100
Mbps full duplex for router application
Support port base VLAN & tag VLAN
Support CoS
Support SMART MAC function
Support spanning tree protocol
Support max forwarding packet length 1552/
1536 bytes option
Support 8-level bandwidth control
Support SCA
Support two fiber ports with far end fault
function for IP178CH only
Built in linear regulator control circuit
Support Lead Free package (Please refer to
the Order Information)
Note – some features need CPU support, please
refer to the detail description inside this data sheet
IP178C/IP178CH
integrates
a
9-port
switch
controller,
SSRAM,
and
8
10/100
Ethernet
transceivers. Each of the transceivers complies
with the IEEE802.3, IEEE802.3u, and IEEE802.3x
specifications. The transceivers are designed in
DSP approach in 0.18um technology; they have
high noise immunity and robust performance.
IP178C/IP178CH operates in store and forward
mode. It supports flow control, auto MDI/MDI-X,
CoS, port base VLAN, bandwidth control, DiffServ,
SMART MAC and LED functions, etc. Each port
can be configured as auto-negotiation or forced 10
Mbps/100 Mbps, full/half duplex mode. Using an
EEPROM or pull up/down resistors on specific
pins can configure the desired options.
Besides
an
8-port
switch
application,
IP178C/IP178CH supports one MII/RMII ports for
router application, which supports 7 LAN ports and
one WAN port. The external MAC can monitor or
configure IP178C/IP178CH by accessing MII
registers through SMI.
MII/RMII port also can be configured to be MAC
mode. It is used to interface an external PHY to
work as an 8+1 switch.
IP178CH supports two fiber ports with far end fault
function.
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