600-2706 PCI EXPRESS EXPANSION SYSTEM USER`S MANUAL
Contents
1. ccccccescccaeceeeececescescseeseeaecceececeeeceseeeeuaeeaaeeaeseeeeeeesseeeseeneaees 5 1 CHAPTER 6 6 1 REFERENCE MANUALS texto evi ieee ia cardi ec He ae vy cn eee a 6 1 i 600 2706 PCI Express Expansion System User s Manual Revision 2 0 August 2009 CONTENTS L I CYCLONE Microsystems LIST OF FIGURES Figure 1 1 600 2706 Block Diagram nn nn nn naar Ninar naar arc ccn nan nnana 1 1 Figure 5 1 PCle 417 Physical Contouratton nr rra rra 5 1 Figure 5 2 PCle 426 Physical Confiouraiton ronca crac 5 2 Figure 5 3 600 2706 Chassis Drawing oooonccinccccnnnncccnnnnnnnncnnnnnnc narnia 5 3 Figure 5 6 600 2706 Chassis E 5 3 LIST OF TABLES Table TL Seege ebe EE ee ee ee ei es 1 3 Table 3 1 PCle 417 Power Requirement cccccceeceeceeeececeeeeeeeaeeeeeeeeeeeaeeseeneeesaeeeseaeeeseaeeeseaeeenaes 3 1 Table 3 2 PCle 426 Power RequirementS onccccinccconnocccononanonncnnnonnnn non cncnnc canario 3 1 Table 3 3 Power Supplied Per PCle Got 3 1 ii 600 2706 PCI Express Expansion System User s Manual Revision 2 0 August 2009 14 CYCLONE Microsystems 1 1 CHAPTER 1 INTRODUCTION INTRODUCTION The Cyclone Microsystems 2706 PCI Express Expansion System is a PCI Express PCle expansion system that allows the user to add up to four PCI Express add in cards Most PCs contain few PCI Express slots making them poorly suited for embedded systems requiring many different 1 O boards and cO processor resources The2. Microsystems Five surface mount LEDs one for each slot and one for the cable are arranged in a row in the corner of the board where the cable enters see Figure 5 2 The LEDs are labeled SLOT A through SLOT D and CABLE Four surface mount LED are placed adjacent to each slot The LEDs are placed just off axis to the bottom side of an installed board so as not to be obscured by components on the board The LEDs are labeled SLOT A through SLOT D The last LED is seen through the back panel next to the PCI Express connector to indicate that the link between the PCle 417 and the PCle 426 has trained 4 2 600 2706 PCI Express Expansion System User s Manual Revision 2 0 August 2009 Zi CYCLONE Microsystems CHAPTER 5 PHYSICAL CONFIGURATION 5 1 PHYSICAL CONFIGURATION k 10800 J 3 250 D 3100 1800 5400 gt Ger t LA Kach d a CRI 9 AE ww e o INOA y KA Ltr JS gagag mmm 7 o o a s O me O Mies offo T T e 0 SC E E E es O O O e ed BEER o o H je 1900 Figure 5 1 PCle 417 Physical Configuration Figure 5 1 is a physical diagram not to scale of the PCle 417 backplane showing the location designators of jumpers connectors and m
3. replaced by a serial interface PCI Express take advantage of recent advances in point to point inter connects Switch based technology and packetized protocol to deliver new levels of performance 600 2706 PCI Express atelier System User s Manual 1 1 Revision 2 0 August 200 INTRODUCTION ld CYCLONE Microsystems Dt MM q l l l l PCle 426 l l l Host PCI Express System l l l l l l L wm vm mm emm pm pm pm pm mm mm mn pn pn pm pn vn mm mm mm mm mm mmm al x16 PCI ExpressCable PCle 417 Expansion System PCI Express x16 Cable Interface PCI Express Figure 1 1 600 2706 Block Diagram 1 2 600 2706 PCI Express Expansion System User s Manual Revision 2 0 August 2009 INTRODUCTION CYCLONE Microsystems 1 2 SPECIFICATIONS The specifications in Table 1 1 detail the 600 2706 Expansion System chassis including the PCIe 417 expansion backplane and the 450W power supply The chassis also includes one 120 CFM and two 59 CFM fans Table 1 1 Specifications Physical Height 7 inches Width 17 inches Depth 22 inches Other 19 inch rack mountable Electrical Voltage 115 230 VAC switch select Frequency 60Hz 50Hz Input Current 9 0 A for 115 CVAC 5 0 A for 230 VAC Inrush Current 60 A max for 115 VAC Environmental Operating Temperature 0 to 50 Degrees Celsius Relative Humidity 0 to 95 non condensing Storage Temperature 20 to 70 Degrees Celsius 1 3 STA
4. 2706 PCI Express Expansion System permits system developers to use powerful and cost effective PCs as a foundation for a robust embedded system The four PCI Express slots are organized as one x16 slot one x8 slot and two x4 slots All expansion slots accommodate full length and full height cards and are cooled by one 120 CFM and two 59 CFM fans A 650 watt supply powers the rack mounted expansion chassis The Expansion System supports 40 Gb s bi directional traffic to and from the host system The system utilizes repeaters and non blocking PCI Express switches for excellent peer to peer I O bandwidth For PCs with modern BIOSs the 2706 Expansion System is recognized by the host system upon boot up requires no hardware specific drivers and is entirely host operating system agnostic The 600 2706 system is composed of three elements a PCI Express Host Bus Cable Adapter an Expansion System Cable and an Expansion Chassis The PCle 426 Host Bus Cable Adapter card is to be inserted into a host computer s x16 PCIe slot The x16 PCIe expansion cable links the PCI host with the expansion chassis The expansion chassis is populated with the PCle 417 Switched Backplane PCI Express is a high performance general purpose I O inter connect defined for a wide variety of computing and communication platforms Key PCI attributes such as its usage model load store archi tecture and software interfaces are maintained whereas its parallel bus implementation is
5. 600 2706 PCI EXPRESS EXPANSION SYSTEM USER S MANUAL The information in this document has been carefully checked and is believed to be entirely reliable However no responsibility is assumed for inaccuracies Furthermore Cyclone Microsystems Inc reserves the right to make changes to any products herein to improve reliability function or design Cyclone Microsystems Inc neither assumes any liability arising out of the application or use of any product or circuit described herein nor does it convey any license under its right or the rights of others Revision 2 0 August 2009 Cyclone P N 800 2706 Copyright 2009 by Cyclone Microsystems Inc CONTENTS L I CYCLONE Microsystems CHAPTER 1 14 INTRODUCTION sd 1 1 T2 SPECIFICATION EE 1 3 1237 STANDARDS Eege 1 3 1 4 ORDERING INFORMATION ioe anneer ticas ted bbdd 1 3 CHAPTER 2 2 1 THEORY OF OPERATION ooooccccccccnccncnnncnccnononononononncnnnnncnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnanannnnnnnns 2 1 CHAPTER 3 31 600 2706 CHA SS Sinn do 3 1 3 2 POWER GONSIDERATIONS t cdt 3 1 CHAPTER 4 4 1 SYSTEM POWER UP c ccsccessecccsseccecesacsessdadscdacesecessassaadsassoasacesesieencaaseaesobadessecssesucivaassnssconccesecss 4 1 4 2 SEATING OF CARDS ee Madsen be al eee ee ih aioe eke 4 1 4 3 LINK INDICATION LED DEFINITION PCleA26 4 1 4 3 1 De Emphasis iii A desde oe 4 1 4 4 LINK INDICATION LED DEFINITION BCleAnt 4 1 CHAPTER 5 5 1 PHYSICAL CONFIGURATION
6. NDARDS PCI Express Base Specification Revision 2 0 PCI Express Card Electro Mechanical Specification 2 0 PCI Express External Cabling Specification 2 0 1 4 ORDERING INFORMATION The expansion system is avaliable with one or three meter cables and standard or low profile panels on the Host Bus Adaptor PCIe 426 600 2706 PCI AE e System User s Manual Revision 2 0 August 2 INTRODUCTION ld CYCLONE Microsystems Cyclone Part Numbers 600 2706 3SH Expansion System with 3 meter cable and standard height panel 600 2706 1SH Expansion System with 1 meter cable and standard height panel 600 2706 3LP Expansion System with 3 meter cable and low profile panel 600 2706 1LP Expansion System with 1 meter cable and low profile panel 600 2706 PCI Express Expansion System User s Manual Revision 2 0 August 2009 14 CYCLONE Microsystems 2 1 CHAPTER 2 THEORY OF OPERATION THEORY OF OPERATION The basic PCI Express link consists of dual unidirectional differential links implemented as a transmit pair and a receive pair The signaling rate for PCI Express is 2 5 Gigabits second Lane direction A link supports at least one lane The PCI Express link from the PCle 426 over the cable to the PCIe 417 is a sixteen lane x16 link The PCIe 417 provides one x16 slot slot D one x8 slot slot C and two x4 slots slots A and B Slots D and C are populated mechanically with x16 con
7. ajor ICs Refer to this figure when component locations are referenced in the manual text 600 2706 PCI Express Expansion System User s Manual 5 1 Revision 2 0 August 2009 PHYSICAL CONFIGURATION ld CYCLONE Microsystems Expansion System Signal Detect LED Expansion System Present LED Figure 5 2 PCle 426 Physical Configuration 5 2 600 2706 PCI Express Expansion System User s Manual Revision 2 0 August 2008 I PHYSICAL CONFIGURATION CYCLONE Microsystems Side View Front View Door Closed Figure 5 3 600 2706 Chassis Drawing Figure 5 4 600 2706 Chassis 600 2706 PCI Express Expansion System User s Manual 5 3 Revision 2 0 August 2009 Zi CYCLONE Microsystems CHAPTER 6 REFERENCE 6 1 REFERENCE MANUALS PEX 8548 Versatile PCI Express Switch Data Book Version 0 95 PLX Technology Inc Sunnyvale CA 800 759 3735 www plxtech com PCI Express Base Specification Revision 2 0 PCI Express Card Electromechanical Specification Revision 2 0 PCI Express External Cabling Specification Revision 2 0 PCI Special Interest Group PCISIG 5440 SW Westgate Dr 217 Portland OR 97221 503 291 2569 503 297 1090 Fax www pcisig org 600 2706 PCI Express Pxpansion System User s Manual 6 1 Revision 2 0 August 200
8. e host PC with the PCle 426 installed controls power up for the entire system The PCI Express cable should be connected between the PCle 426 and the PCle 417 and the 600 2706 power cord should be connected to the chassis and plugged in to a power socket There is a power button on the front of the 600 2706 Expansion Chassis however it is not connected and serves no practical purpose in this appli cation When the host PC is powered on a signal is sent over the PCI Express cable to turn on the 600 2706 If the chassis does not power up make sure that all cards are seated properly the chassis is plugged in and the PCI Express cable is connected properly There is only one LED on the front of the expansion chassis that has meaning The green LED indicates that the chassis is powered SEATING OF CARDS Unlike standard PC applications the 2706 Expansion Systems has a narrow lower gate that precisely engages the lower end of the PCI Express Add In board s face panel The purpose is to insure correct electrical connectoring mating of up plugged boards Failure to accurately mate the lower end of the face panel with the chassis lower gate will lead to the board not being recognized by the host LINK INDICATION LED DEFINITION PCle 426 The bottom or left LED on the front panel is the Cable Present Detect LED This LED reflects the status of the CPRSNT signal in the PCIe Expansion Cable When the LED is ON it is indicating that the CPRSNT
9. nectors the upper eight lanes of slot C are not connected Slots A and B are populated mechanically with x8 connectors the upper four lanes are not connected All slots can accommodate either single lane x1 x4 or x8 add in cards Slots C and D can additionally accommodate x16 cards In the case where a x8 add in card is installed into a x4 slot only the first four lanes on the add in card will be utilized This situation is termed down shifting Per the PCI Express Specification down shifting is only allowed m this case Although not expressly permitted by the PCI Express Specification slot C accommodates down shifting a x16 card into x8 slot Plugging a smaller link card into a larger link connector is fully allowed Once the PCle 426 is installed into the host PC the cable connected to the PCle 417 the chassis plugged into an AC power outlet and any desired add in cards are installed the system is ready to be turned on When the host is turned on a signal from the PCle 426 will turn on the PCle 417 chassis A number of things happen at this point First the PCI Express links are initialized This is a purely hardware initialization where each PCI Express link is set up following a negotiation of lane widths by the two ends of each link No firmware or operating system software is involved Once the links are initialized or trained there are LED indicators on each of the Cyclone Microsystems cards that indicate the links a
10. one Microsystems boards and the power supplied to the PCI Express slots Note that the PCle 426 is installed in and powered by the host supply Consequently the PCIe 426 should not be included as a component of the Expansion Chassis power budget In a fully populated system with each PCI Express add in card drawing 25W there is an additional 70W of 5V and 100W of 12V available for use via the peripheral power connectors POWER CONSIDERATIONS Table 3 1 PCle 417 Power Requirements Voltage Current Typical Current Maximum 3 3V 0 33 Amps 0 40 Amps 5V 1 03 Amps 1 56 Amps 12V 0 02 Amps 0 04 Amps Table 3 2 PCle 426 Power Requirements Voltage Current Typical Current Maximum 3 3V 1 09 Amps 1 60 Amps 12V 0 Amps 0 Amps The PCle 426 does not use 12V Table 3 3 Power Supplied Per PCle Slot Voltage Current Maximum Voltage Tolerance 3 3V 3 0 Amps 9 12V 2 1 Amps 8 Required by the PCI Express Card Electromechanical Specification Revision 1 0a Note that the total power for each PCle shall not exceed 25W Airflow in the 600 2706 chassis is provided by one 120 CFM located at the front of the chassis and two 59 CFM fans located at the rear of the chassis Revision 2 0 August 2 600 2706 PCI AE e System User s Manual 3 1 14 CYCLONE Microsystems 4 1 4 2 4 3 4 3 1 4 4 CHAPTER 4 SYSTEM POWER UP SYSTEM POWER UP Th
11. re trained A detailed explanation of the LEDs follows later in this manual One essential requirement for system initialization is the ability of the host system s BIOS to be able to enumerate the many bridges inherent in a complex PCI Express design The links from the PCle 426 to the PCle 417 are created with PCI Express Switches Each link looks like a PCI to PCI bridge to the Host s BIOS The number of bridges can add up quickly Older BIOS may not have the ability to handle the number of bridges Make sure that the BIOS on the host computer has the latest updated BIOS If required contact the host system s manufacturer to make sure that the BIOS used can handle the large number of bridges that it will see in the system 600 2706 PCI Express Pxpansion System User s Manual 2 1 Revision 2 0 August 200 ld CYCLONE Microsystems 3 1 3 2 CHAPTER 3 EXPANSION SYSTEM OPERATION 600 2706 CHASSIS The PCle 417 is installed into an eight slot rack mountable chassis The chassis provides access to all four PCI Express slots All slots can accommodate standard height and full length PCI Express add in cards The chassis also contains three drive bays that may be used by the user to install peripheral devices for their particular application There are several ATX four pin peripheral power connectors available from the power supply The chassis contains a 650W power supply Tables 3 1 through 3 3 show the power consumption for the Cycl
12. signal is asserted The PCle 417 chassis asserts CPRSNT to indicate that it is present the cable is connected and power is good If this LED is OFF there may be a problem with 3 3V power in the expansion chassis or the PCIe Expansion Cable is not connected properly The top or right LED on the panel is Expansion System Signal Detect The LED is on when the PCle 426 Detects a Signal on Lanes 0 3 of the PCIe cable The LED is on indicates normal operation If the LED is not on there is something wrong with the cable or the expansion system is not operating properly De Emphasis The transceiver silcon used on the PCIe 426 has eight steps of programmable de emphasis Cyclone Microsystems has determined is the best setting for both 1m and 3m PCIe cables shipped with Cyclone PCIe Expansion systems The PCle 426 has a DIP switch that is factory set for de emphasis Users should not change the de emphasis setting unless they have the proper test equipment to verify their results Users change de emphasis at their own peril LINK INDICATION LED DEFINITION PCle 417 The PCIe 417 has ten green LEDs to indicate the link status of each slot and the cable Each slot and the cable has two redundant LED link status indicators If the LEDs are on the Physical Layer of the link for the associated port has trained to at least x1 width 600 2706 PCI Express Pxpansion System User s Manual 4 1 Revision 2 0 August 200 SYSTEM POWER UP ld CYCLONE
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