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Intel® 41 1 10 Serial to Parallel PCI Bridge Design Guid e March 2006 Order Num ber: 31033 5-001.
ii Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide INFORMA TION IN THIS DOCUM ENT IS PROVIDE D IN CONNECTION WIT H INTEL ® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTO PPEL OR OTHERWISE, T O ANY INTELLECTUAL PROPERTY RIG H TS IS GRANTED BY THIS DOCUMENT .
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide iii Contents Contents 1 About This Document ................... ............. ................... ............. ................... ............. ................... 7 1.1 Terminology and Defin itions .
iv Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Contents 10.2 41110 Refe rence and Co mpensati on Pins ........ ............ .................... ............. ................... . 48 11 41110 Customer Reference Boards ............. ...
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide v Contents 10 Embedd ed PCI-X 133 MHz Routing Re commenda tions ........... ................... ............. ................. 36 11 Embedd ed PCI-X 100 MHz Routing Re commenda tions .......
vi Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Contents Revision History Date Revision Description March 2006 001 Initial release..
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 7 About This Document 1 Thi s d ocu m ent provi des l a you t inf orma tion a nd gu idel ines for de sign ing p latf orm o r add- in bo ard applications with the Intel® 411 10 S erial to Parallel PCI Bridge (also called the 4 1 1 10 Bridge).
8 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide About This Document PCB Printed circuit board. Example manufacturing process consists of the following steps: • Consists of alt ernating layers of core and prepreg stacked • The finished PCB is heated and cured.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 9 Introduction 2 The Intel® 41 1 10 Serial to Parallel PCI Bridge integrates a PCI Express-to-PCI bridge. The bridge follows the PCI-to-PCI Bridge pr ogramming model. The PCI Express po rt is compliant to th e PCI Expr ess Specification , Revision 1.
10 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Introduction • Up to two downstream delayed (memory read, I/O read/write and configuration read/write) transaction.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 11 Introduction Figur e 1. Microc ont rol ler Blo ck Diagra m 2.4.2 Micro control ler Connections to the 41 1 10 Figu re 2 shows the SMB interface from th e 41 1 10 to the microcontr oller .
12 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Introduction Figure 2. 41 1 1 0 M icr ocontroller Connections 2.5 JT AG • Compliant with IEEE S tandar d T est Access Port and Bo undary Sca n Ar chitectur e 1 149.1a 2.6 Related Documents • .
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 13 Introduction 2.7 Intel® 41 1 10 Serial to Parallel PCI Bridge Applications This section provides a block diag ram for a typical the 41 1 10 application. This appl ication shows a PCI-E adapter card with two Dual 2Gb Fibre Chann e l controllers.
14 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Introduction Figure 4. 41 1 10 Adapter Card Block Diagram Seri a l to Pa ra lle l PCI Bridge.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 15 Package Information 3 3.1 Package Specification The 41 1 10 Bridge is in a 5 67-ball F CBGA package, 31mm X 31mm i n size, with a 1.27mm bal l pitch (see Figure 5 and Fi gur e 6 ). Figure 5.
16 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Package Information Figure 6. 41 1 10 Bridge Package Dimensions (Side V iew) Note: Primary datum -C- and s eating plane are defin ed by the spherical crowns of the solder balls. Note: Al l dime n si on s and t oler ance s con f orm t o A NSI Y14.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 17 Power Plane Layout 4 This chapt er provid es details on the decoup ling and v oltage planes needed to b ias the 41 1 10 package. 4.1 41 1 10 Deco upling Gu idelines Ta b l e 2 lists the decoup ling guidelines for the 41 1 10.
18 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Power P lane Layout Figure 8 . D ecoupling Placement for PCI/P CI-X 1.5V an d 3.3V V oltage Planes B2714-01 Capacitor Legend 0603-0.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 19 Power Plan e La yout T abl e 2. 41 1 10 Decoupling G uidelines 4.2 S plit V oltage Planes There are two 1.5V volt age planes that supply pow er to the 41 1 10: • VCC15:1 .5V ±5% (1.5V core vol tage) • VCCPE:1.
20 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Power P lane Layout Note: Linear voltage r egulators ar e recommend ed when using 1.5 V olt pow er suppli es.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 21 41 1 10 Reset and Power Timing Considerations 5 This chapter describes the 411 1 0 reset timing considerations. 5.1 A_RST# and PERST# T iming Requirements The PCI-X Specification req uires that there i s a 100ms delay from valid power (PER ST # ) to reset deassertion (A_RST#).
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Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 23 General Routing Guidelines 6 This chapter pr ovides some basi c routing gu idelines for layou t and design of a print ed circuit board using the 41 110 . The high-sp eed clockin g requir ed when designi ng with the 41 110 requir es speci al attention to signal integrity .
24 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide General Routing Guidelines • A void slots in the gro und plane. S lots increas es mutual inductance th us increas ing crosstalk. • Make sure th at ground pl ane surro unding connect or pin fields are n ot completely cleared out.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 25 General Routing Guidelines 6.4 Power Distribution and Decoup ling Have ample deco upling to g round, for the power p l anes, to minimize the ef fects of the switching currents. Thr ee types of decoupling are: th e bulk, the high- frequency ceramic, and th e inter-plan e capacitors.
26 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide General Routing Guidelines Note: Using stripline transmiss ion lines may give better results than microst rip.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 27 Board Layout Guidelines 7 This chapter pr ovides details on adap ter card stack up suggestions. It is highly r ecommended that signal integrity simulations be run to verify each 41 1 10 PCB layou t especially if it deviates from the recommendations list ed in these design guidelines.
28 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Board Layout Guide lines Note: Each interface will set the trace spacing bas ed on its signal integrity of d ifferential imp edance requirements. For the purposes of the building the transmission line models, it is assum ed the artwork is very accurate and therefore a constant.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Gu ide 29 PCI-X Layout Guidelines 8 This chapter describes several factors to be co nsidered wi th a 41 1 10 PCI/PCI-X desi gn. These include the PCI IDSEL, PCI RCOMP , PCI Interrupts and PCI arbitration.
30 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI-X Layo ut Guidelines Note: PCI Express A ssert_IN Tx/Deassert _INTx messag es are not i nhibited by the BME bi t.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 31 PCI-X Layout Guidelines • Bus parking on last PCI agent or the bridge. By defaul t, the arbit er parks the b us on the br idge and drives the A/D, C/BE# and P AR lines to a known value while the bus is idle.
32 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI-X Layo ut Guidelines T able 7. PCI/PCI-X Frequency/Mode Stra ps Note: All signals s ampled on the rising ed ge of PERST # .
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 33 PCI-X Layout Guidelines distributed to each PCI device. The 41 110 provides seven buf fered clocks o n t he PCI bus t o conn ect to multip le PCI-X devi ces. The Figure 16 shows the use of fo ur PC I “A” clock output s and len gth matching requirements.
34 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI-X Layo ut Guidelines T able 8. PCI-X Clock Layout Requirement s Summary Paramet e r Routing Gui delines Signal Group PCI Clocks A_CLK[.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 35 PCI-X Layout Guidelines 8.5 PCI-X T o pology Layo ut Guidelines The PCI-X Addendum to the PCI Local Bus Specification , R evision 1.0a compliant, recommends the foll owing guide lines f or th e number of loads for yo ur PC I-X de signs.
36 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI-X Layo ut Guidelines 8.6.1 Embedded PCI-X 133 MHz This section l ists the routing recommendations fo r PCI-X 133 MHz wi thout a slot. Figure 1 7 shows the block di agram of thi s topol ogy and Ta b l e 1 0 describe s the rou ting recommen dations.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 37 PCI-X Layout Guidelines 8.6.2 Embedded PCI-X 100 MHz This section lists th e embed ded rou ting recommendations for PCI-X 100 MHz. Figur e 18 shows the bl ock diagr am of this t opol o gy and Ta b l e 1 1 describes the ro uting recomm endations.
38 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI-X Layo ut Guidelines 8.6.3 PCI -X 66 MHz Embedded T op olo gy Figur e 19 an d Ta b l e 1 2 provide routi ng details f or a topolo gy with an emb edded PCI- X 66 MHz application. Figure 19.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 39 PCI-X Layout Guidelines 8.6.4 PCI 66 MHz Embedded T op ology Figu re 20 and Ta b l e 1 3 provi de routing det ails for a topology w ith an embedded P CI 66 MHz design. P Figure 20. PCI 66 MHz Embedded T opology T able 13.
40 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI-X Layo ut Guidelines 8.6.5 PCI 33 MHz Embedded Mod e T o pology Figur e 21 an d Ta b l e 1 4 provide routi ng details f or a topolo gy with an emb edded PCI 33 MHz design. Figure 21. PCI 33 MHz Embedded Mode Routing T opology T able 14.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 41 PCI Express Layout 9 This section provid es an overview of the PC I-Express stackup r ecommended based o n Intel presimulation results.
42 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI Express Layo ut 9.2 PCI-Express Layout Guidelin es The layout guidel ines for PCI-Express were deve loped for an adapter card topologies.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 43 PCI Ex press Layou t Receive Tr ace Length (Card edge finger to 41 1 10 re ceiver pin 1.0” min - 6.0” max Length Matching Requirements: T otal allowable intra-pair length mis-m atch must not ex ceed 25 mi ls.
44 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide PCI Express Layo ut This page intentionally le ft blank..
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 45 Circuit Implementations Circuit Implementations 10 This chapter describes 411 10 circuit implementations.
46 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Circuit Implementations 10.1.1 PCI Analog V olt age Filters The following filter circuit is recommended fo r the PCI interface. Three separate, identical versions of this circuit should be placed on the system board, one for each VCCAPCI[2:0] pin on the 41 1 1 0.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 47 Circuit Implementations Figure 23. PCI Express Analog V oltage Filter Circuit Additional No tes : • Place C as close as possible to p ackage pin. • R must be placed between VC C 15 and L.
48 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Circuit Implementations Figure 24. B andgap Analog V olt age Filter Circuit Ad dition al Note s : • Place C as close as pos sible to package p in. • R must be placed between the 2.5 V supply and L.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 49 Circuit Implementations Figure 25. Reference and Compensation Circuit Implement ations 10.
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Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 51 41 1 10 Customer Reference Boards 11 This chapt er describes the 41 1 10 Customer Reference Board (CRB).
52 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide 41 1 1 0 Customer Reference Boards 11 . 2 M a t e r i a l The following materials are us ed with the 41 110 CRB: • FR-4, 0.0 62 in. +/- .007, 1.0 oz Copper Power/G ND. • Full len gth PCI Raw C ard (3.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 53 41 1 1 0 Custome r Reference Bo ards 1 1.4 Bo ard Outline Figu re 26 provides the mechanical outline of the 41 11 0 CRB.
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Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 55 Design Guide Checklist 12 This checkl ist highlight s design consideratio ns that s hould be review ed prior t o manufacturing an adapter card that implemen ts the 41 110 product.
56 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Design Guide Checklist T able 20. PCI/PCI-X Interface Signals (Sheet 1 of 2) Signals Recomm endations Reason/Impact A_AD[63:32] A_CBE[7:4].
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 57 Design Guide Checklist A_M66E N Controls frequency of the PCI segment when running in conventional PCI mode (33 MHz or 66 MHz): 0 = 33 MHz PCI 1 = 66 MHz PCI • Pull-up using a 8.2K Ω resistor when the P CI bus is to operate at 66 MH z and not already pulled up by system board.
58 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Design Guide Checklist CFGRETRY Input pin to configure 41 1 10 to retry configuration accesses on it's PCI Express interf ace. • T o retry configu ration accesses to the 4 111 0 , pul l high to 3.
Intel® 411 10 Serial to Pa rallel PCI Bridge Design Guide 59 Design Guide Checklist T abl e 23. Reset Pins Ballout Pin Name Usag e E6 STR AP_V_ 1 Pull u p to V CC33 B5 STR AP_V_ 2 Pull u p to V CC33 .
60 Intel® 41 110 Serial to Parallel PCI Bri dge Design Guide Design Guide Checklist T able 24. Power and Ground Signals Signal Re commendat ions Reason/Im pac t RCOMP 100 Ω ±1% (1/4 W) pul ldown resistor to ground. The trace impedance of this signal should be < 0.
T abl e 25. JT AG Signals Signal Recommendati ons R eason/Imp act TCK If not used for JT A G , leave as No Connect Internal pull-up TDI If not used for JT AG , leave as No Connect Internal pull-up TDO.
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