abaco systems PEX430 Quick user guide
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Hardware Reference Manual
PEX430
Edition 1QD
Publication No. PEX430-0HH/1QD
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2PEX430 Publication No. PEX430-0HH/1QD
Document History
Edition
Date
Board Artwork Revision
1
May 2008
Board Rev2
1DF
October 2010
No Technical change; rebranding only
1DF
December 2010
Erratum, Section A.6
1DF
January 2012
Erratum, Section 5.1.8
1QD
November 2016
No technical content change, rebranding only
Waste Electrical and Electronic Equipment (WEEE) Returns
Abaco Systems Limited is registered with an approved Producer Compliance Scheme (PCS) and,
subject to suitable contractual arrangements being in place, will ensure WEEE is processed in
accordance with the requirements of the WEEE Directive.
Abaco Systems Limited will evaluate requests to take back products purchased by our customers
before August 13, 2005 on a case by case basis. A WEEE management fee may apply.
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Publication No. PEX430-0HH/1QD Contents 3
Contents
1 • Introduction .............................................................................................................................. 5
1.1 Features ..................................................................................................................................................................5
1.2 Conventions ............................................................................................................................................................6
1.3 Safety Notices ........................................................................................................................................................7
1.3.1 Safety Summary................................................................................................................................................................7
1.3.2 Power Supplies..................................................................................................................................................................7
1.3.3 Backplane Requirements..................................................................................................................................................7
1.3.4 Flammability......................................................................................................................................................................7
1.3.5 EMI/EMC Regulatory Compliance....................................................................................................................................7
1.3.6 Heatsink.............................................................................................................................................................................8
1.4 Abaco Systems Website ........................................................................................................................................8
1.5 Abaco Documents ..................................................................................................................................................8
1.6 Technical Support ..................................................................................................................................................8
1.7 Returns....................................................................................................................................................................9
2 • Identification and Inspection ................................................................................................. 10
2.1 Product Identification ......................................................................................................................................... 10
2.2 Inspection ............................................................................................................................................................ 11
3 • Configuration and Power-Up.................................................................................................. 12
3.1 Configuration ....................................................................................................................................................... 12
3.1.1 PMC Clock Override (E1).................................................................................................................................................13
3.1.2 PCI Express Port Lane Configuration (E3).....................................................................................................................14
3.1.3 PCI Express Upstream Port Configuration (E1) ............................................................................................................14
3.1.4 PMC X100 Selection (E1 and E3) ...................................................................................................................................15
3.1.5 PEX430 Switch and Bridge EEPROM Hold (E3) ............................................................................................................16
3.1.6 JTAG Chain (E4) ..............................................................................................................................................................17
3.2 Power-Up.............................................................................................................................................................. 17
4 • Functional Description ........................................................................................................... 18
4.1 Functional Overview............................................................................................................................................ 18
4.1.1 System Example..............................................................................................................................................................19
4.1.2 VPX PCI Express Port......................................................................................................................................................20
4.1.3 PCI Express Switch .........................................................................................................................................................21
4.1.4 PCI Express to PCI/PCIX Bridge.....................................................................................................................................21
4.1.5 Differential I/O Signals....................................................................................................................................................22
4.1.6 Single Ended I/O Signals ................................................................................................................................................22
4.2 Configuration EEPROMs..................................................................................................................................... 22
4.2.1 Recovery Mode................................................................................................................................................................22
4.3 LEDs...................................................................................................................................................................... 23
4.3.1 PCI Express Switch > PCI to PCI Express Bridge ..........................................................................................................24
4.3.2 PCI Express Switch > VPX Connectors –Channel A ....................................................................................................24
4.3.3 PCI Express Switch > VPX Connectors –Channel B ....................................................................................................25
4.3.4 PCI Express Switch > VPX Connectors –Channel C ....................................................................................................26
4.3.5 PCI Express Switch > VPX Connectors –Channel D ....................................................................................................27
4.3.6 PCI Express Switch > XMC Connectors.........................................................................................................................28
4.3.7 PMC Clock Frequency.....................................................................................................................................................29
4.3.8 Power Supplies................................................................................................................................................................30
4.4 Software............................................................................................................................................................... 30
4.4.1 Operating Systems..........................................................................................................................................................30
4.4.2 BIT30
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4PEX430 Publication No. PEX430-0HH/1QD
5 • Connectors.............................................................................................................................. 31
5.1 Pinouts ................................................................................................................................................................. 32
5.1.1 P0 Connector...................................................................................................................................................................32
5.1.2 J0 (Backplane) Connector Pinout ..................................................................................................................................32
5.1.3 P1 Connector...................................................................................................................................................................33
5.1.4 J1 (Backplane) Connector Pinout ..................................................................................................................................33
5.1.5 P2 Connector...................................................................................................................................................................34
5.1.6 J2 (Backplane) Connector Pinout ..................................................................................................................................34
5.1.7 P0 VPX Signal Descriptions............................................................................................................................................35
5.1.8 P1 Signal Descriptions....................................................................................................................................................35
5.1.9 P2 Signal Descriptions....................................................................................................................................................35
5.1.10 J1 (JTAG) Connector ....................................................................................................................................................36
5.1.11 J17 Connector ...............................................................................................................................................................36
5.1.12 J11 (PMC) Connector....................................................................................................................................................37
5.1.13 J12 (PMC) Connector....................................................................................................................................................38
5.1.14 J13 (PMC) Connector....................................................................................................................................................39
5.1.15 J14 (PMC) Connector....................................................................................................................................................40
5.1.16 J14 (PMC) to J2 (Backplane) Mapping........................................................................................................................41
5.1.17 J15 (XMC) Connector....................................................................................................................................................42
5.1.18 J16 (XMC) Connector....................................................................................................................................................42
5.1.19 J16 (XMC) to J2 (Backplane) Mapping........................................................................................................................43
A • Specifications........................................................................................................................ 44
A.1 Power Requirements .......................................................................................................................................... 44
A.1.1 Power Dissipation...........................................................................................................................................................44
A.1.2 Input Voltage...................................................................................................................................................................44
A.1.3 Max Current.....................................................................................................................................................................44
A.2 Interface Specifications ..................................................................................................................................... 44
A.3 Mechanical Specification................................................................................................................................... 45
A.3.1 Weight..............................................................................................................................................................................45
A.3.2 Dimensions......................................................................................................................................................................45
A.4 Reliability (MTBF)................................................................................................................................................ 45
A.5 Environmental Specifications ............................................................................................................................ 46
A.5.1 Convection-cooled Boards .............................................................................................................................................46
A.5.2 Conduction-cooled Boards.............................................................................................................................................46
A.6 Product Code Information.................................................................................................................................. 47
Index............................................................................................................................................. 48
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Publication No. PEX430-0HH/1QD Introduction 5
1 • Introduction
The Abaco Systems PEX430 is an XMC and PMC carrier-card based on the 3U VPX
form factor. The PEX430 can also be used as a PCI Express switch.
Figure 1-1 PEX430
1.1 Features
16 lanes of external PCI express
Flexible lane options
PMC carrier
XMC carrier
PCI Express to PCI bridge
8 lanes of PCI Express to XMC
4 lanes of PCI Express to PCI bridge
Configurable Non-Transparent port
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6PEX430 Publication No. PEX430-0HH/1QD
1.2 Conventions
This manual may use the following types of notice:
WARNING
Warnings alert you to the risk of personal injury.
CAUTION
Cautions alert you to system damage or loss of data.
NOTE
Notes call attention to important features or instructions.
TIP
Tips give guidance on procedures that may be tackled in a number of ways.
LINK
Links take you to other documents or websites. The purple link color may also be used within a body of text
or paragraph to indicate a link (or hyperlink) to a different part of the same document.
All numbers are expressed in decimal, except addresses and memory or register
data, which are expressed in hexadecimal. Where confusion may occur, decimal
numbers have a “D” subscript and binary numbers have a “b” subscript. The prefix
“0x” shows a hexadecimal number, following the ‘C’ programming language
convention. Thus:
One dozen = 12D= 0x0C = 1100b
The multipliers “k”, “M” and “G” have their conventional scientific and engineering
meanings of x103, x106and x109respectively. The only exception to this is in the
description of the size of memory areas, when “K”, “M” and “G” mean x210, x220 and
x230 respectively.
NOTE
When describing transfer rates, “k”, “M” and “G” mean x103, x106, and x109- not x210, x220, and x230.
In PowerPC terminology, multiple bit fields are numbered from 0 to n, where 0 is the
LSB and n is the MSB.
Signal names ending with a tilde (“~”) denote active low signals; all other signals are
active high.
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Publication No. PEX430-0HH/1QD Introduction 7
1.3 Safety Notices
1.3.1 Safety Summary
Observe the following general safety precautions during operation of this
equipment. Failure to comply with these precautions or with specific Warnings
and/or Cautions elsewhere in this manual violates safety standards of design,
manufacture and intended use of the equipment. Abaco Systems Inc. assumes no
liability for the user’s failure to comply with these requirements.
The safety precautions listed below represent warnings of certain dangers of which
Abaco is aware. Take note of these warnings and take all other safety precautions
necessary for the safe operation of the equipment in your operating environment.
1.3.2 Power Supplies
WARNING
Do not exceed 7A supply current –a fuse or circuit breaker must be fitted.
Do not reverse bias the input supply.
Power supply problems should be dealt with only by qualified personnel.
1.3.3 Backplane Requirements
CAUTION
Only use the PEX430 in backplanes that supply power on both the J1 and J2 connectors.
1.3.4 Flammability
All Abaco circuit boards are manufactured by UL- recognized/approved
manufacturers and have a flammability rating of 94V-1.
1.3.5 EMI/EMC Regulatory Compliance
CAUTION
This equipment generates, uses, and can radiate electromagnetic energy. It may cause or be susceptible to
electromagnetic interference (EMI) if not installed and used in a cabinet with adequate EMI protection.
Abaco Systems Ltd boards are designed using good EMC practices and, when used
in a suitably EMC-compliant chassis, should maintain the compliance of the total
system.
Abaco Systems Ltd boards also comply with EN60950 (product safety).
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8PEX430 Publication No. PEX430-0HH/1QD
1.3.6 Heatsink
CAUTION
Do not remove the heatsink.
There are no user-alterable components underneath the heatsink, so users should
have no reason to remove it.
Users should not attempt reattachment of the heatsink, as this requires precise
torque on the screws attaching the heatsink to the PCB. Over-tightening the screws
may cause the heatsink to damage components beneath it (e.g. the main PowerPC
processor). Removal and re-attachment of the heatsink should only be carried out by
Abaco.
1.4 Abaco Systems Website
You can find information on Abaco products on the following website:
LINK
https://www.abaco.com
1.5 Abaco Documents
You may register for access to manuals via the website whose link is given above.
1.6 Technical Support
You can find technical assistance contact details on the website Embedded Support
page.
LINK
https://www.abaco.com/embedded-support
Abaco will log your query on the Technical Support database and allocate it a unique
Case number for use in any future correspondence.
Alternatively, you may also contact Abaco’s Technical Support via:
LINK
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Publication No. PEX430-0HH/1QD Introduction 9
1.7 Returns
If you need to return a product, there is a Return Materials Authorization (RMA)
form available via the website Embedded Support page.
LINK
https://www.abaco.com/embedded-support
Do not return products without first contacting the Abaco Repairs facility.
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10 PEX430 Publication No. PEX430-0HH/1QD
2 • Identification and Inspection
2.1 Product Identification
The PEX430 is identified by labels at strategic positions. You can cross-check these
against the Advice Note provided with your delivery.
Identification labels, similar to this,
attached to the shipping box and
the antistatic bag provide identical
information: product code, product
description, equipment number
and board revision.
On the board within the antistatic
bag, there is an identifying label
similar to this attached to the
printed wiring board.
On conduction-cooled versions of
the board (build levels 4 and 5),
there is also a label similar to this
attached to the front panel.
A label, similar to this, giving the
board’s hardware Ethernet or MAC
address is also attached to the
printed wiring board.
See the Product Code Information section in Appendix A for more details
00-80-8E
00-50-93
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Publication No. PEX430-0HH/1QD Identification and Inspection 11
2.2 Inspection
When handling the PEX430, observe antistatic precautions.
Visually examine the PEX430 for any physical damage.
If the PEX430 is not received in perfect physical condition, report this to Abaco
immediately.
There are no user-alterable hardware configuration settings on the PEX430.
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12 PEX430 Publication No. PEX430-0HH/1QD
3 • Configuration and Power-Up
3.1 Configuration
The PEX430 is highly configurable. Jumpers enable the board to be configured
sufficiently to permit basic operation with most system configurations. More detailed
configuration is possible by the use of in-system programming of on-board
EEPROMs. Figure 3-1 shows the location of the configuration jumpers.
Figure 3-1 Configuration Links
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Publication No. PEX430-0HH/1QD Configuration and Power-Up 13
Table 3-1 shows that the PEX430 can be manually configured for a number of
different operating conditions and that, in some cases, the jumpers can have more
than one function; the operation of the jumpers being altered by the state of some
external signals, for instance. The following sections describe the available functions
and which jumpers are associated with each function.
Table 3-1
Link
Section for Information
Function(s)
E1
3.1.1
3.1.3
3.1.4
PMC Clock Over-ride
PCI Express Upstream Port
PMC X100 Selection
E3
3.1.2
3.1.4
3.1.5
PCI Express Port Lane configuration
PMC X100 Selection
PEX430 Switch and Bridge EEPROM Hold
E4
3.1.6
JTAG Chain
CAUTION
Unless specifically noted in this manual, jumpers should not be changed while the board is powered.
NOTE
The PEX430 can be configured for XMC I/O or PMC I/O. This configuration is a build time option and the
appropriate PEX430 needs to be ordered.
3.1.1 PMC Clock Override (E1)
Normally, the PMC clock frequency will be selected automatically by the fitting of a
PMC. However, it is possible to override this setting manually.
Table 3-2
E1 Pins 3-4
E1Pins 5-6
E1 Pins 1-2
Operation
Notes
Open
Don’t Care
Don’t Care
PMC determines the PMC clock frequency
Default configuration
Closed
Open
Open
Force 133 MHz operation
Closed
Open
Closed
Force 100 MHz operation
Closed
Close
Open
Force 66 MHz operation
Closed
Closed
Closed
Force 33 MHz operation
CAUTION
These jumpers are also used for setting the PCI Express upstream port configuration. It should be noted
that even if these jumpers are being used for PCI Express upstream configuration the PMC clock frequency
will also be changed (See 3.1.3 ).
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14 PEX430 Publication No. PEX430-0HH/1QD
3.1.2 PCI Express Port Lane Configuration (E3)
The PEX430 has a number of different PCI Express lane options, the configuration of
which is set up as shown in Table 3-3.
Table 3-3
E3 Pins 5-6
E3 Pins 3-4
PCI Express Lane Configuration
Notes
Port 0
Port 1
Port 2
Port 3
Open
Open
X4
X4
X4
X4
Default Configuration
Open
Closed
X8
X8
X0
X0
Closed
Open
X8
X4
X4
X0
Closed
Closed
X8
X4
X2
X2
3.1.3 PCI Express Upstream Port Configuration (E1)
Using E1 to change the configuration of the upstream port enables the user to set the
PEX430 into a basic mode that suits their application, and enables them to program
the settings they require into the on-board EEPROM.
NOTE
It is not expected that jumpers will be used to permanently change the upstream port.
A user will normally configure the PEX430 to use another upstream port using the jumpers, and then this
configuration will be programmed into the EEPROM.
Subsequently, the jumpers can be removed and the board will be set to boot using the values stored in the
EEPROM. There is an option to ignore the EEPROM should the contents become corrupt or unsuitable for a
particular application.
Programming the EEPROM requires an application to be run on the SBC that is connected to the PEX430.
Table 3-4
Backplane NVMRO
PEX430 E1 Pins 3-4
PEX430 E1 Pins 5-6
PEX430 E1 Pins 1-2
Description
1
Don’t Care
Don’t Care
Don’t Care
Upstream port is the default Port 0
0
Open
Don’t Care
Don’t Care
Upstream port is set to Port 0
0
Closed
Open
Open
Upstream port is set to Port 0
0
Closed
Open
Closed
Upstream port is set to Port 1
0
Closed
Closed
Open
Upstream port is set to Port 2
0
Closed
Closed
Closed
Upstream port is set to Port 3
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Publication No. PEX430-0HH/1QD Configuration and Power-Up 15
CAUTIONS
While these jumpers are fitted the PMC clock frequency will be over-ridden with the frequency selected by
the jumpers (see 3.1.1 ). It is not expected that this will be an issue since the setting of the upstream port
is expected to be done during a configuration operation on the PEX430 and not for normal operation.
Depending on how the NVMRO signal for the PEX430 is connected to the NVMRO signal for other VPX
cards all the non-volatile memory devices in the system could be put into a writable state.
It is possible to set the upstream port to a port that is not configured. For example, if the ports are set up in
x8 x8 x0 x0 mode then only Ports 0 and 1 are valid ports (the other two ports have a zero lane width). In this
case, if the upstream port was set for Port 2 (or 3) then no upstream port will be enabled.
3.1.4 PMC X100 Selection (E1 and E3)
The PEX430 supports the operation of a PMC card with PCIX capability. It is possible
to configure the operation of the PCIX PMC card for either 100 MHz or 133 MHz
operation using Jumper E3 pins 1-2, as shown in Table 3-5.
Table 3-5
PEX430 E1 Pins 3-4
PEX430 E3 Pins 1-2
Description
Open
Open
PMC clock will be set to 100 MHz PCIX mode (if PMC supports PCIX operation)
Open
Closed
PMC clock will be set to 133 MHz PCIX mode if PMC supports PCIX operation)
Closed
Don’t Care
PMC clock will be set manually by other E1 jumpers
NOTE
If a PMC card that does not have PCIX capability is fitted, then jumper E3 pins 1-2 has no effect.
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16 PEX430 Publication No. PEX430-0HH/1QD
3.1.5 PEX430 Switch and Bridge EEPROM Hold (E3)
Jumper E3 pins 1-2 sets the switch and bridge EEPROMs into a hold mode so that
the switch or bridge cannot access them.
Table 3-6
Backplane NVMRO
PEX430 E3 Pins 1-2
Description
1
Don’t Care
EEPROMs not in Hold mode
EEPROMs read only
0
Closed
EEPROMs in Hold mode
EEPROMS not writable
Stage 1 of recovery mode (see Note)
0
Open
EEPROMs not in Hold mode
EEPROMs writable
Stage 2 of recovery mode (see Note)
If the VPX NVMRO signal is logic low –i.e. the on-board’s non volatile memories are
in the read/write mode, the jumper can be used to control the hold signal of the two
EEPROMs. This one signal controls the hold state of both EEPROMs.
NOTE
Recovery mode is described in Section 4.2.1
CAUTIONS
Depending on how the NVMRO signal for the PEX430 is connected to the NVMRO signal for other VPX
cards all the non-volatile memory devices in the system could be put into a writable state.
Jumper E3 pin 1-2 is also used for setting the PCIX PMC card (see Section 3.1.4 ).
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Publication No. PEX430-0HH/1QD Configuration and Power-Up 17
3.1.6 JTAG Chain (E4)
The PEX430 includes a JTAG test chain. There is an option either to use the full JTAG
test chain or to reduce the chain to program the CPLD.
Table 3-7
PEX430 E4 Pins 1-2
PEX430 E4 Pins 3-4
Description
Open
Open
JTAG Chain is incomplete
Open
Closed
Short JTAG Chain –used for CPLD Programming
Closed
Open
Full JTAG Chain –used for JTAG testing
Closed
Closed
Invalid option –DO NOT USE
3.2 Power-Up
The PEX430 does not have any specific power supply start up sequence
requirements.
The PEX430 requires a 5 volt DC supply to operate. The 5 volt supply is the main
power supply and will need to be of sufficient power for the proper operation of the
PEX430. The PEX430 produces all other supplies required for proper operation
internally.
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18 PEX430 Publication No. PEX430-0HH/1QD
4 • Functional Description
4.1 Functional Overview
The PEX430 is a PMC and XMC carrier and PCI Express (PCIe) switch card. It
provides a PCIe switch function between devices connected to the VPX connector,
the XMC connectors and a bridging function to PCI/PCIX devices connected to the
PMC connectors.
Figure 4-1 Functional Block Diagram
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Publication No. PEX430-0HH/1QD Functional Description 19
4.1.1 System Example
Figure 4-2 System Block Diagram
In this example system, the PEX430 acts as a PCIe switch between the two VPX PCIe
SBCs; thereby allowing the two SBCs to communicate with each other. In this
example the SBCs will be connected to the PEX430 configured to have 2 ports with 8
lanes in each port. One of these ports would normally be expected to be set to Non-
Transparent mode in this case. In addition, if the PEX430 has been configured for
operation as an XMC carrier the PEX430 acts as a PCIe switch between the SBCs and
any PCIe device fitted to the XMC site. If the PEX430 had been configured for
operation as a PMC carrier the PEX430 would act as a PCIe switch and provide a
bridging function to PCI/PCIX devices on the PMC site instead of acting as a switch
to the XMC site.
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