Instruction/ maintenance manual of the product 21143 Intel
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Intel ® 21 143 PCI/CardBus 10/ 100Mb/s Ethernet LAN Controller Design Guid e July 2002 Order Numb er: 27858 8-001.
2 Design G uide Informati on in th is docum ent is p rovided in conn ection with Inte l ® products . No license, express or imp lied, by estoppe l or otherwise, to any intellectu al property rights is g ranted by this docu ment.
Design G uide 3 Contents Contents 1.0 Functiona l Overview ................. ............. .................... ............ ............. .................... .......... ... ............ 5 1.1 21143 Overview ....... ...... ....... ...... ....... ....
4 Design G uide Contents 9 AUI 10BA SE2 Network Conn ection ....... .................... ............ .................... ............. ................... . 17 10 21143 Ex ternal Compo nent Connec tions .................. ............ ..............
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 5 This desi gn guide provides a de scription o f how to imp lement 100B ASE-TX and 10BASE-T network con nections u sing the 21 143 PCI/CardBu s 10/10 0 Mb/s Ethernet LAN C ontroller (referred t o as the 21 143).
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 6 Design G uide The 21 143 imp lements the 100BASE- T MII layer and the 100 /10 Mb/s Ethernet MAC layer . The 21 143 pro vides a dual network interf ace for both a 1 00BASE-T and a 10 Mb/s Ethern et.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 7 SYM-based PHY dev ices ar e provided by GEC Ples sey*, Quality Semiconductor*, and Micro Linear*.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 8 Design G uide Ta b l e 5 lists the active SYM signals when the 21 143 SYM port is selected.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 9 3.0 Network Connection The network connections of the 21 14 3 can be used i n 10BASE-T , AUI, MI I, or SYM configurations. Dif ferent method s are used to conn ect each port to the actual cable con nector .
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 10 Design G uide Figure 3. 1 0BASE-T Network Connection with Buff ers tp_td+ 6 tp_td++ 7 tp_td- 5 tp_td-- 4 tp_rd- 9 tp_rd- 10 21143 Transmit Path Receive Path GND GND 61.9 301 61.9 301 806 TP Filters and Chokes 78Z041 (SMD) RJ45 GND 1 2 3 6 49.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 11 Figur e 4 shows the 10B ASE-T networ k connection w ithout buf fers.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 12 Design G uide Figur e 5 shows the mi nimum comp one nt requi rement fo r the 10BASE-T net work c onn ection. This implementation uses a filter transformer module with a 1: transformer on th e transmit path to compensate for the vo ltage swing.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 13 3.2.1 Internal Optional Daughtercard Figur e 6 shows a block d iagram of a 100-Ready d esign us ing a daught er card.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 14 Design G uide 3.2.3 100-R eady Ext ernal Module Design Figur e 7 shows a block diag ram of a 100- Ready design using an external mod ule.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 15 3.3 A UI Ne tw o rk Por t The 21 143 is fully compliant with the AUI standard. The AUI can interface with an external medium-attachment unit (MAU) and connect to alternate media, such as 10BASE2 (ThinW ire) and 10BASE5 (t hickwire).
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 16 Design G uide Figure 8. A UI 10BASE5 Network and Pin Connectio ns aui_rd+ 139 aui_rd- 140 aui_cd+ 137 aui_cd- 138 aui_td+ 142 aui_td- 143 21143 Transmit Path Receive Path GND 40.2 40.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 17 Figur e 9 shows the AUI 10BASE2 networ k connection . In this conf iguratio n, the AUI is n ot externally exposed.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 18 Design G uide 3.4 Media-Specific Components Ta b l e 8 lists the media-specif ic interface components for 10 BASE-T access. Ta b l e 1 0 list s the media-specific interface compon ents for 10BASE2 an d 10BASE5 access.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 19 4.0 21 143 Requi rement s This sectio n provide s informat ion about th e external comp onent connect ions for the 21.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 20 Design G uide 4.3 C ryst al and Cryst al Oscillator Connections Figur e 10 s hows two serial clock con nections; select either the crystal connection or the crys tal oscillator connection.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 21 5.0 Signal Ro uting and Pla cement The Ethernet circuitry should be kept f ree of interference from u nrelated si gnal t races. Routi ng for other signals must be kept away from the space surrounding the grouped Ethernet components.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 22 Design G uide Intel also rec ommends th at the conn ector ’ s shield of the adapter should be connected to the PC chassis. 5.1.1 3.3 V Power Supply The 21 143 o perates with a power supply of 3.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controller Design G uide 23 6.0 Design C onsiderations This section provid es informat ion to aid t he user in desi gni ng Ethernet and Fas t Ethernet capa bilitie s onto a motherboard. In addition, i t also i ncludes des ign consi derations for FCC compl iance.
Intel ® 21 143 PC I/CardBus 10 /100Mb/s Ether net LAN Controlle r 24 Design G uide • Engineering Electromagnetic Capability , by V . Prasad Kodali 6.
An important point after buying a device Intel 21143 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Intel 21143 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Intel 21143 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Intel 21143 you will learn all the available features of the product, as well as information on its operation. The information that you get Intel 21143 will certainly help you make a decision on the purchase.
If you already are a holder of Intel 21143, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Intel 21143.
However, one of the most important roles played by the user manual is to help in solving problems with Intel 21143. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Intel 21143 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
