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IP175A 데이터시트 PDF




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부품번호 IP175A 기능
기능 5 Port 10/100 Ethernet Integrated Switch
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IP175A 데이터시트, 핀배열, 회로
www.DataSheet4U.com
IP175A LF
Preliminary Data Sheet
5 Port 10/100 Ethernet Integrated Switch
Features
General Description
5 port 10/100 Ethernet switch with built in IP175A LF is a low cost 10/100 Ethernet single
transceivers and memory
chip switch. It integrates a 5-port switch controller,
Build in SSRAM for frame buffer
SSRAM, and 5 10/100 Ethernet transceivers.
Built in storage of 1K MAC address
Each of the transceivers complies with the
Support flow control
IEEE802.3, IEEE802.3u, and IEEE802.3x
– Support IEEE802.3x for flow control for full specifications. The transceivers are designed in
duplex mode operation
DSP approach with 0.25um technology; they have
– Support backpressure for flow control for high noise immunity and robust performance.
half duplex mode operation
5 port switching fabric
IP175A LF operates in store and forward mode. It
– Support two-level hashing algorithm to supports flow control, auto MDI/MDI-X, CoS, port
solve MAC address collision
base VLAN, and LED functions, etc. Each port can
– Support MAC address aging
be configured to auto-negotiation or forced
– Store and forward mode
10M/100M, full/half duplex, and it is also able to
– Broadcast storm protection
configure to 100BaseFX transmission mode.
– Full line speed capability of 148800 (14880) Using an EEPROM or pull up/down resistors on
packets/sec for 100M (10M)
specified pins can configure the desired options.
– Support 1536 byte data transfer for VLAN IP175A LF does not support “forced 10M half
packet traffic
mode”.
– Port base VLAN
– Port base CoS configuration
DataSheet4IUP1.c7o5mA LF supports two MII ports for router
Integrate 5 ports transceiver
application, which supports 4 LAN ports and one
– Each port can be auto negotiable or forced WAN port. MII0 is for LAN traffic and MII1 is for
10M/100M, full/half duplex
WAN traffic and no external PHY is needed. Both
– Each port can be configured as 100BaseFX MII can work in PHY mode and interface to the
– Automatic MDI/MDI-X configuration
external MAC in this application. The external
Support two MII, one SMI and extended MII MAC can monitor or configure IP175A LF by
registers for router application
accessing MII registers through SMI.
Built in regulator for 3.3v to 2.15v
LED status of Link, activity, Full/half duplex, MII0 also can be configured to be MAC mode. It is
speed, and power on diagnostic function
used to interface an external PHY to work as a
Initial parameter setting by pin or EEPROM 4+1 switch.
(24LC01) configuration
Utilize single clock source (25Mhz)
0.25u technology
Support Lead Free package (Please refer to
the Order Information)
DataShee
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IP175A LF-DS-R07




IP175A pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
Applications (continued)
Application 1: 5 TP port switch
Switch
IP175A LF
5 port
switch controller
PHY
0
PHY
1
PHY
2
PHY
3
PHY
4
IP175A LF
Preliminary Data Sheet
Use 5 builtin PHY.
MII0 and MII1 ports are not
used.
5 TP port
et4U.com
Application 1: 5 FX port switch
Switch
IP175A LF
DataSheet4U.com
Fiber
MAU
0
Fiber
MAU
1
Fiber
MAU
2
Fiber
MAU
3
Fiber
MAU
4
Use 5 external fiber MAU.
MII0 and MII1 ports are not
used.
5 FX port
DataShee
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IP175A LF-DS-R07

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IP175A 전자부품, 판매, 대치품
www.DataSheet4U.com
et4U.com
3 Pin Descriptions
Type
I
O
IPL
IPH
Description
Input pin
Output pin
Input pin with internal pull low
Input pin with internal pull high
IP175A LF
Preliminary Data Sheet
Type
IPL1
IPH1
IPL2
IPH2
Description
Input pin with internal pull low 22.8k ohm
Input pin with internal pull high 22.8k ohm
Input pin with internal pull low 92.6k ohm
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
100 X_EN
IPH1
This pin doesn’t set the flow control of MII0 port. MAC_X_EN
sets the flow control of MII0 port.
IEEE802.3X enable
1: enable (default),
0: disable
ThisDapitnaSdhoeeestn4Ut .sceotmthe 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)
DataShee
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IP175A LF-DS-R07

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