
IP175A LF
Preliminary Data Sheet
2/60
February 20, 2006
Copyright © 2004, IC Plus Corp.
IP175A LF-DS-R08
Table Of Contents
Features ......................................................................................................................1
General Description .....................................................................................................1
Table Of Contents ........................................................................................................2
Revision History...........................................................................................................3
1
Applications ...........................................................................................................4
Applications (continued) .................................................................................................5
Applications (continued) .................................................................................................6
2
Pin Diagram...........................................................................................................7
3
Pin Descriptions.....................................................................................................8
Pin Descriptions (continued)...........................................................................................9
Pin Descriptions (continued) .........................................................................................10
Pin Descriptions (continued)......................................................................................... 11
Pin Descriptions (continued).........................................................................................12
Pin Descriptions (continued).........................................................................................13
Pin Descriptions (continued).........................................................................................14
Pin Descriptions (continued).........................................................................................15
Pin Descriptions (continued) .........................................................................................17
Pin Descriptions (continued).........................................................................................18
4
Functional Description .........................................................................................19
4.1
5-port switch application ..................................................................................................... 19
4.2
Router application............................................................................................................... 20
4.3
MII0 MAC mode.................................................................................................................. 21
4.4
MII, SMI and MII register .................................................................................................... 22
4.5
Fiber port configuration....................................................................................................... 25
4.6
CoS..................................................................................................................................... 26
4.7
VLAN .................................................................................................................................. 27
4.7.1
Port base VLAN..................................................................................................... 27
4.7.2
Tag / un-tag............................................................................................................ 27
4.8
Initial value set by LED pins ............................................................................................... 28
4.9
Built in regulator.................................................................................................................. 29
4.10
Extended MII registers........................................................................................................ 30
4.11
EEPROM register ............................................................................................................... 37
4.12
The basic MII registers ....................................................................................................... 48
4.13
LED Blink Timming ............................................................................................................. 52
5
Electrical Characteristics .....................................................................................53
5.1
Absolute Maximum Rating.................................................................................................. 53
5.2
DC Characteristic ............................................................................................................... 53
5.3
AC Timing ........................................................................................................................... 54
5.3.1
Reset Timing.......................................................................................................... 54
5.3.2
MII0 PHY Mode Timing.......................................................................................... 54
5.3.3
MII1 PHY Mode Timing.......................................................................................... 56
5.3.4
MII0 MAC Mode Timing ......................................................................................... 57
5.3.5
SMI Timing............................................................................................................. 58
5.3.6
EEPROM Timing ................................................................................................... 59
6
Order Information.................................................................................................59
7
Package Detail.....................................................................................................60