Pentek Cobalt 78661 User manual

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Pentek Model 78661 Installation Manual Page 1
Manual Part No: 800.78661 Rev: 1.7 − November 9, 2015
Pentek, Inc.
One Park Way
Upper Saddle River, NJ 07458
(201) 818−5900
http://www.pentek.com
Copyright © 2011−2015
INSTALLATION MANUAL
MODEL 78661
4−Channel 200 MHz A/D,
With four Digital Down−Converters,
Cobalt Family PCIe Board

Page 2 Pentek Model 78661 Installation Manual
Warranty
Pentek warrants that all products manufactured by Pentek conform to published Pentek specifications and are free from defects in mate−
rials and workmanship for a period of one year from the date of delivery when used under normal operating conditions and within the
service conditions for which they were furnished. The obligation of Pentek arising from a warranty claim shall be limited to repairing or
at its option, replacing without charge, any product that in Pentek’s sole opinion proves to be defective within the scope of the warranty.
Pentek must be notified in writing of the defect or nonconformity within the warranty period and the affected product returned to Pentek
within thirty days after discovery of such defect or nonconformity. Buyer shall prepay shipping charges, taxes, duties and insurance for
products returned to Pentek for warranty service. Pentek shall pay for the return of products to buyer except for products returned from
another country.
Pentek shall have no responsibility for any defect or damage caused by improper installation, unauthorized modification, misuse, neglect,
inadequate maintenance, or accident, or for any product that has been repaired or altered by anyone other than Pentek or its authorized
representatives.
The warranty described above is buyer’s sole and exclusive remedy and no other warranty, whether written or oral, is expressed or
implied. Pentek specifically disclaims fitness for a particular purpose. Under no circumstances shall Pentek be liable for any direct, indi−
rect, special, incidental, or consequential damages, expenses, losses or delays (including loss of profits) based on contract, tort, or any
other legal theory.
Copyrights
The contents of this publication are Copyright © 2011−2015, Pentek, Inc. All Rights Reserved. Contents of this publication may not be
reproduced in any form without written permission.
Trademarks
Pentek, Cobalt, GateFlow, and ReadyFlow are registered trademarks or trademarks of Pentek, Inc.
PCI, PCI Express, PCIe, and PCI−SIG are trademarks or registered trademarks of PCI−SIG. PLX and the PLX logo are registered
trademarks of PLX Technology, Inc. Xilinx and Virtex are registered trademarks or trademarks of Xilinx, Inc.
Manual Revision History
Date Revision Comments
1/28/11 Preliminary Initial release.
12/8/11 Sect 2.4.2, updated 71661 switch SW2 descriptions.
1/23/12 1.0 Sect 2.10.5, Sect 2.12.2 & Sect 2.12.4, added/updated Notes on input limits for PMC P14, TRIG, and
SYNC/GATE connectors.
4/24/12 1.1 Sect 2.12.1, corrected external clock input voltage limit to +10 dBm.
6/8/12 1.2 Sect 2.10.6, expanded table for SERIO B connector pinouts.
7/25/13 1.3 Sect 2.4.2, corrected default setting of XMC SW2−7 − should be ON.
9/24/13 1.4 Verified & updated cross−reference links in manual.
3/24/14 1.5 Sect 2.4.2, changed XMC switch SW2−5 default to OFF, factory use only.
6/26/15 1.6 Sect 2.10.7 & Sect 2.12.4, provided Pentek Model numbers for available mating connectors.
11/9/15 1.7 Sect 2.10.7, updated GPIO connector mating cable identifier.
Printed in the United States of America.

Pentek Model 78661 Installation Manual Page 3
Page
Table of Contents
Rev.: 1.7
Chapter 1: Introduction
1.1 General Description..............................................................................................................................5
1.2 Model 78661 Features...........................................................................................................................5
1.3 Model 78661 Documentation ..............................................................................................................5
1.4 Block Diagram.......................................................................................................................................6
Figure 1−1: Model 78661 Block Diagram.........................................................................................6
1.5 Principle of Operation..........................................................................................................................7
1.6 Specifications.........................................................................................................................................8
Chapter 2: Installation and Connections
2.1 Inspection...............................................................................................................................................9
Figure 2−1: Model 78661 Assembly..................................................................................................9
2.2 Jumper and Switch Settings ..............................................................................................................10
2.3 Removing XMC Module from PCIe Carrier...................................................................................11
Figure 2−2: Removing 71661 XMC from PCIe Carrier................................................................11
2.4 XMC Module Switches ......................................................................................................................12
Figure 2−3: Model 71661 XMC PCB Assembly Drawing, Solder Side....................................12
2.4.1 Switch SW1 − FPGA MGT Clock Operation ................................................................13
Table 2−1: SW1 − FPGA MGT Clock Operation........................................................13
Table 2−2: Aux MGT Clock Frequency − Switches SW1−3:4 ..................................13
2.4.2 Switch SW2 − FPGA Configuration ...............................................................................14
Table 2−3: SW2 − FPGA Configuration .......................................................................14
Table 2−4: FPGA Configuration Select − Switches SW2−3:4...................................14
2.5 XMC Module Jumpers .......................................................................................................................15
Figure 2−4: Model 71661 Main PCB Connector Side Jumpers..................................................15
Table 2−5: Virtex−6 Program eFUSE Enable − Jumper Block J28 ............................................15
2.6 XMC Module LEDs ............................................................................................................................16
Figure 2−5: Model 71661 Main PCB, Solder Side LEDs .............................................................16
Table 2−6: PCB LED Use ..................................................................................................................16
2.7 PCIe Carrier Jumpers .........................................................................................................................17
Figure 2−6: Model 7806 PCIe Carrier PCB Connector Side − Jumpers & Switches..............17
2.7.1 XMC−PCIe Serial Bus Enable .........................................................................................18
Table 2−7: XMC−PCIe Serial Bus Enable − Jumper Block J17 ................................18
2.7.2 JTAG Signal Select ............................................................................................................18
Table 2−8: JTAG Signal Select − Jumper Blocks J18, J19, J20, J21, J22...................18
2.8 PCIe Carrier Switches ........................................................................................................................19
Table 2−9: XMC Modes − Switch SW1..........................................................................................19
2.9 PCIe Carrier LEDs ..............................................................................................................................20
Figure 2−7: Model 7806 PCIe Carrier PCB Connector Side .......................................................20

Page 4 Pentek Model 78661 Installation Manual
Page
Table of Contents
Rev.: 1.7
Chapter 2: Installation and Connections (continued)
2.10 PCIe Carrier Connectors ................................................................................................................... 21
2.10.1 Power Connector .............................................................................................................. 21
2.10.2 JTAG Connector ............................................................................................................... 21
Table 2−10: JTAG J4 Connector..................................................................................... 21
2.10.3 Fan Connector ................................................................................................................... 21
Figure 2−8: PCIe Carrier Block Diagram ...................................................................................... 22
2.10.4 XMC Connectors .............................................................................................................. 22
2.10.5 PMC Connector (Option 104) ......................................................................................... 22
2.10.6 Gigabit Serial I/O Connectors ........................................................................................ 23
Table 2−11: Serial I/O Connector Pins ......................................................................... 23
2.10.7 GPIO Connector (Option 104) ........................................................................................ 24
Table 2−12: GPIO Connector Pins ................................................................................ 24
2.11 Installing the Model 78661 in a Personal Computer..................................................................... 25
Figure 2−9: Model 78661 Mounted in PCIe Slot.......................................................................... 26
2.12 XMC Panel Connections.................................................................................................................... 27
Figure 2−10: Model 71661 Front Panel.......................................................................................... 27
2.12.1 Clock Input Connector ....................................................................................................27
2.12.2 Trigger Input Connector ................................................................................................. 28
2.12.3 Analog Input Connectors ................................................................................................ 28
2.12.4 Sync Bus Connector ......................................................................................................... 28
Table 2−13: SYNC/GATE Connector Pins................................................................... 29
2.13 XMC Panel LEDs................................................................................................................................ 30
2.13.1 Link LED ............................................................................................................................ 30
2.13.2 User LED ........................................................................................................................... 30
2.13.3 Master LED ....................................................................................................................... 30
2.13.4 PPS LED ............................................................................................................................. 30
2.13.5 Over Temperature LED ................................................................................................... 30
2.13.6 Clock LED .......................................................................................................................... 30
2.13.7 ADC Overload LEDs .......................................................................................................30

Pentek Model 78661 Installation Manual Page 5
Rev.: 1.7
Chapter 1: Introduction
1.1 General Description
Pentek’s Cobalt®Family Model 78661 is a multichannel, high−speed analog data con−
verter. Using the PCI Express®half−length card format, the 78661 includes four 200−
MHz, 16−bit A/D converters and four Digital Down−Converters.
The Model 78661 consists of one Pentek Model 71661 XMC module mounted on a Pen−
tek Model 7806 XMC PCI Express carrier, assembled and tested as a single board. It is
ready to plug into computer boards with PCI Express (PCIe®) bus slots.
1.2 Model 78661 Features
The Model 78661 includes the following features:
• Four 200−MHz 16−bit A/D converters
• Xilinx®Virtex®−6 FPGA, with Pentek−supplied IP Core:
• Four−channel multiband Digital Down−Converter
• DDC Beamformer with complex weighting and channel summation logic
• Aurora gigabit serial interface for chaining multiple 71661 boards
• Up to 32 MB of QDRII+ SRAM or 2 GB of DDR3 SDRAM
• Clock synthesizer with programmable clock rates
• LVPECL clock/sync bus for multimodule synchronization
• PCI Express (Gen 1 or 2) interface up to x8 wide
• LVDS connections to the Virtex−6 FPGA for custom I/O
1.3 Model 78661 Documentation
This Model 78661 Installation Manual describes the installation and connections for the
78661 PCIe assembly. Documentation of the 71661 XMC operation and programming is
provided in the supplied Model 71660 Operating Manual, Pentek document
#800.71660, and Model 71661 Addendum Manual, Pentek document #800.71661.
Datasheets for the programmable devices on the Model 71661 are provided in the Pen−
tek Model 7x660 Series Supplemental Manual, part number 809.7x660. This document
is available on the CD provided by Pentek, in file 8097x660.pdf (PDF format).

Page 6 Pentek Model 78661 Installation Manual
Rev.: 1.7
1.4 Block Diagram
The following is a simplified block diagram of the Model 78661 A/D module.
Figure 1−1: Model 78661 Block Diagram
Clock/Sync/
PPS/Gate
TIMING
CONTROL
VCXO
IN 1
RF In
IN 2
RF In
200 MHz
16−BIT A/D
200 MHz
16−BIT A/D
RF
XFORMER
16 16
RF
XFORMER
IN 3
RF In
200 MHz
16−BIT A/D
16
RF
XFORMER
TTL Sync/PPS
TTL Gate/Trig
Sample Clk A
Sample Clk B
Gate A/D
Gate D/A
Sync A/D / PPS
Sync D/A / PPS
Sample Clk /
Reference Clk In
A/D Timing Bus
FLASH
64 MB
GPIO
P14 P15
Model 7806
PCIe Carrier
PCI Express (x8)
SER
I/O B
SER
I/O A
Virtex−6
FPGA
P16
x4
PCIe
16
QDRII+
SRAM
QDRII+
SRAM
16 16
DDR3
SDRAM
DDR3
SDRAM
QDRII+
SRAM
QDRII+
SRAM
16 16
DDR3
SDRAM
DDR3
SDRAM
16 16 16 16
Option 150
Option 155
Memory Banks A/B
Option 160
Option 165
Memory Banks C/D
Aurora
ADC Input Routing
DDC 2 DDC 3
Beamformer
FPGA
I/O
20
pair
PCI Express Interface
ADC 2
Acquisition
Module
ADC 3
Acquisition
Module
DDC 1
ADC 1
Acquisition
Module
x4
IN 4
RF In
200 MHz
16−BIT A/D
16
RF
XFORMER
DDC 4
ADC 4
Acquisition
Module

Pentek Model 78661 Installation Manual Page 7
Rev.: 1.7
1.5 Principle of Operation
The Model 78661 consists of one Pentek Model 71661 XMC module mounted on a Pen−
tek Model 7806 XMC PCI Express carrier, assembled and tested as a single board. It is
ready to plug into computer boards with PCI Express (PCIe®) bus slots.
The 71661 XMC is a Pentek−supplied FPGA IP Core installed in a Pentek Model 71660
XMC module. This FPGA Core includes of four multiband Digital Downconverters
(DDCs) with a beamformer. Multiple 71661 modules may be linked together over an
Aurora gigabit serial link to perform beamforming of up to 256 input channels.
The 71661 XMC features a Xilinx Virtex−6 FPGA for signal interfaces and processing.
The FPGA is pre−configured with a four−channel digital down−converter IP core. The
FPGA also provides board interfaces including PCIe and XMC. Custom I/O connec−
tions are provided to the FPGA through the optional PMC P14 connector (Option 104).
Aurora gigabit serial interfaces are implemented through the XMC P16 connector.
The 71661 XMC includes four 200−MHz, 16−bit A/D converters, which provide data to
the FPGA. The A/D converters provide data to the FPGA, where the data is processed
by the downconverter cores.
The 71661 XMC includes up to 32 MBytes of QDRII+ SRAM, or 2 GBytes of DDR3
SDRAM. This memory is controlled by the FPGA and is organized as two or four
banks, depending on the 71661 options ordered. Separate banks (separate address and
data per bank) allow simultaneous access to all banks. This memory can be used as
data capture, as buffer memory when transferring data between board resources or to
off−board resources, or as a memory resource for custom FPGA applications.
The 71661 XMC includes an onboard VCXO and a programmable clock synthesizer for
clocking, but can also accept external clocks through front panel connectors. The 71661
is equipped with an LVPECL front panel clock and sync bus that can synchronize up to
four modules with built−in master/termination functions.
The 7806 Carrier provides one x8 full−duplex serial port, allowing high−speed 71661
data transfer to and from the PCIe bus using the XMC P15 connector. An XMC P16
connector provides two x4 Gigabit Serial I/O ports to support the Aurora interface.
Two Serial I/O connectors (SER I/O A and B) provide access to these x4 gigabit serial
paths. An optional PMC P14 connector on the carrier provides a data path to a GPIO
connector (for Option 104).

Page 8 Pentek Model 78661 Installation Manual
Rev.: 1.7
1.6 Specifications
71661 XMC Signal Processing
Refer to the Model 71660 Operating Manual, Pentek document #800.71660,
and to the Model 71661 Addendum Manual, Pentek document #80071661
Carrier XMC Interface
Primary XMC Interface
XMC Connector: 114−pin (XMC standard Pn5 connector), J15
Speed: One x8 link supports data rates up to 4 Gbps
P15 Connectivity: Direct interface to the PCIe bus
Secondary XMC Interface
XMC Connector: 114−pin (XMC standard Pn6 connector), J16
VITA 42.5 Aurora Pin Assignments
Speed: Dual x4 links support data rates up to 5 Gbps
P16 Connectivity: One x4 link wired from J16 rows A and B to
serial I/O connector SERI/O A
Second x4 link wired from J16 rows D and E to
serial I/O connector SERI/O B
Carrier PMC Interface (Option 104)
PMC Connector: 64−pin PMC standard connector, J14
J14 Connectivity: Directly wired to GPIO connector to allow connectivity
to XMC module P14 connector for user I/O
Estimated Power Consumption
PCIe Carrier
With no XMC: 6.35 Watts typ (9.31W max)
XMC Module: +3.3V VPWR(12V or 5V) Total Power
XC6VLX130T 2A 1.95A@12V or 4.7A@5V 30W
XC6VLX240T 2.3A 2A@12V or 4.8A@5V 32W
Physical
Dimensions, PCIe Carrier, half−length PCIe add−in card
Height: 111.15 mm (4.376 in) (including PCIe connectors)
Length: 167.65 mm (6.60 in)
Weight
PCIe Carrier: 110 grams (3.9 oz)
XMC Module: Approximately 14 oz (400 grams), with 2−slot heatsink

Pentek Model 78661 Installation Manual Page 9
Rev.: 1.7
Chapter 2: Installation and Connections
2.1 Inspection
After unpacking, inspect the unit carefully for possible damage to connectors or com−
ponents. If any damage is discovered, contact Pentek immediately at (201) 818−5900.
Please save the shipping container and packing material in case reshipment is required.
The following figure illustrates the Model 78661 assembly, with the 71661 XMC module
mounted onto the PCIe carrier.
Note that a cooling assembly/heat−sink may be mounted on the 78661 assembly as
shipped from the factory.
Figure 2−1: Model 78661 Assembly
SER I/O
A
SER I/O
B
GPIO
Power
Fan Power
Cooling Assembly
XMC Module
PCIe Carrier

Page 10 Pentek Model 78661 Installation Manual
Rev.: 1.7
2.2 Jumper and Switch Settings
The following sections describe user operating parameters that are set by shorting
jumpers or DIP switches on the Model 78661.
The shorting jumpers used on the Model 78661 are for 0.020" (0.51 mm) square pins
spaced on 0.079" (2.00 mm) centers. These jumpers are NorComp part number 810−
002−LP1R001, or equivalent. Pentek’s part number for these jumpers is 356.00015.
As shipped from the factory, all jumpers and DIP switches are installed in default posi−
tions on your board. The default operating parameters selected may or may not meet
your requirements. Before installing your Model 78661, please review the following
sections to determine whether you need to change any of these settings.
The Model 78661 includes one Pentek 71661 XMC module mounted on a Pentek Model
7806 XMC to PCI Express (PCIe) carrier as illustrated in Figure 2−1 on the prior page.
As shipped, the 71661 XMC module is mounted onto the PCIe carrier.
Refer to Section 2.4 for the switch settings and Section 2.5 for the jumper settings on
the 71661 PCB. All switch blocks are accessible in this shipped configuration. If
you need to access the jumpers on the XMC, you must first remove the XMC
module from the PCIe carrier, as described in Section 2.3.
Refer to Section 2.7 for the jumper settings and Section 2.8 for the switch settings on
the carrier PCB. All switch blocks are accessible in the shipped configuration. If you
need to access certain jumpers on the PCIe carrier, you must first remove the XMC
module from the PCIe carrier, as described in Section 2.3.
Note
Do not change jumpers or switches that are not described in this chapter—
those are reserved for factory test and setup purposes only.

Pentek Model 78661 Installation Manual Page 11
Rev.: 1.7
2.3 Removing XMC Module from PCIe Carrier
1) From the solder side of the Model 78661 assembly (side opposite the 71661 XMC),
unscrew the four pan−head Phillips mounting screws, as identified below.
2) From the XMC module side, GENTLY, pull on the XMC card to disengage the card’s
connectors from the PCIe carrier’s XMC connectors.
After jumper or switch changes, replace the XMC onto the PCIe carrier as follows.
1) Position the 71661 XMC module’s front panel into the PCIe carrier’s panel opening
from behind the PCIe carrier slot panel, and align the XMC module so that the
connectors on the XMC card are aligned over the connectors on the PCIe carrier.
2) GENTLY but firmly, press down on the areas of the XMC opposite the connectors to
fully seat the card’s connectors into the carrier. The connectors on the XMC should
connect smoothly with the corresponding connectors on the carrier.
3) From the solder side of the PCIe carrier, secure the XMC to the carrier by screwing the
four pan−head Phillips mounting screws (those removed above) through the PCIe
carrier into the XMC module.
CAUTION
Perform all steps at a static−controlled work workstation.
Figure 2−2: Removing 71661 XMC from PCIe Carrier
XMC
Module
XMC
Mounting
Screws
Cooling
Assembly

Page 12 Pentek Model 78661 Installation Manual
Rev.: 1.7
2.4 XMC Module Switches
The following sections describe user operating parameters that are set by two DIP
switches, identified as SW1 and SW2, on the Model 71661 main PCB (Pentek part
number 320−71600).
As shipped from the factory, all switches are set for the configuration shipped. The
operating parameters they select may or may not meet your requirements. Before
installing your 78661 assembly onto a PCIe baseboard, please review the following
subsections to determine whether you need to change any of these settings.
Both switch blocks are located on the solder side of the Model 71661 PCB and are
accessible while the 71661 is mounted onto the PCIe carrier. An assembly drawing of
the solder side of the main PCB is provided below, showing the location of switches
SW1 and SW2 on the PCB.
Note that several user LEDs are located on the solder side of the 71661 main PCB. Refer
to Section 2.6, on page 16 for description of these LEDs.
ON
12345678
ON 12345678
Figure 2−3: Model 71661 XMC PCB Assembly Drawing, Solder Side
Switch
SW2
Switch
SW1

Pentek Model 78661 Installation Manual Page 13
Rev.: 1.7
2.4 XMC Module Switches (continued)
2.4.1 Switch SW1 − FPGA MGT Clock Operation
Switch SW1 provides user control over the FPGA MGT clocks used for the
XMC interface. The following table shows the settings for this switch.
CAUTION
Use ballpoint tip only for setting DIP switches.
DO NOT USE paper clips, tweezers, or any other sharp
objects, as they may damage the switch.
Table 2−1: SW1 −FPGA MGT Clock Operation
Switch Function ON OFF
SW1−1Primary PCIe Clock Frequency ** 100 MHz 250 MHz *
SW1−2Secondary PCIe Clock Frequency 100 MHz 250 MHz *
SW1−3Auxiliary MGT Clocks (A/B/C) Frequency See Table 2−2below
SW1−4
SW1−5Secondary PCIe Clock Disable Disabled * Enabled
SW1−6Auxiliary MGT Clocks (A/B/C) Disable Disabled Enabled *
SW1−7Primary PCIe Clock Source XMC CLK0 * 250 MHz Crystal
SW1−8Secondary PCIe Clock Source *** XMC CLK1 * AUX_MGT_CLK_A
* Factory Default Settings
** Switch SW1−1must be in the OFF (250 MHz) position for Pentek factory FPGA code
and for any x8 or Gen 2 design.
*** Switch SW1−8, when in the ON position clock source is the XMC P16 connector.
Table 2−2: Aux MGT Clock Frequency −Switches SW1−3:4
SW1−3SW1−4Aux MGT Clk A/B Aux MGT Clk C
OFF OFF 312.5 MHZ 125 MHz
ON OFF 156.25 MHz 125 MHz
OFF ON 125 MHz 156.25 MHz
ON * ON * 156.25 MHz 156.25 MHz
* Factory Default Setting

Page 14 Pentek Model 78661 Installation Manual
Rev.: 1.7
2.4 XMC Module Switches (continued)
2.4.2 Switch SW2 − FPGA Configuration
Switch SW2 controls access to the FPGA configuration functions. The fol−
lowing table shows the settings for this switch.
CAUTION
Use ballpoint tip only for setting DIP switches.
DO NOT USE paper clips, tweezers, or any other sharp
objects, as they may damage the switch.
Table 2−3: SW2 −FPGA Configuration
Switch Function ON OFF
SW2−1FLASH Memory Write Protect/Write Enable Write Protected * Write Enabled
SW2−2Factory use only −should always be set to ON
SW2−3Select Boot Configuration at power on See Table 2−4below
SW2−4
SW2−5Factory use only −should always be set to OFF
SW2−6no function −−
SW2−7XMC JTAG Enable XMC JTAG * Board JTAG
SW2−8Select whether JTAG chain includes Memory FPGA & Memory FPGA Only
Note: When QDRII+ memory is installed, SW2−8should be set to ON, FPGA & Memory,
or JTAG activity may interfere with QDRII+ SRAM operation.
* Factory Default Settings
Table 2−4: FPGA Configuration Select −Switches SW2−3:4
SW1−3SW1−4Configuration Select (FLASH)
ON * ON * Version 0 Boot Code −Gen 1 x8 PCIe
OFF ON Version 1 Boot Code −Gen 2 x4 PCIe
ON OFF Version 2 Boot Code
OFF OFF Version 3 Boot Code
* Factory Default Setting
Refer to the 71660 Operating Manual, #800.71660, for FLASH Memory use.

Pentek Model 78661 Installation Manual Page 15
Rev.: 1.7
2.5 XMC Module Jumpers
The following describes user operating parameters that are set by jumper block J28 on
the Model 71661 PCB. This jumper block is located on the connector side of the Model
71661 main PCB (Pentek part number 320−71600). An assembly drawing of the con−
nector side of the PCB is provided below, showing the location of jumper block J28.
NOTE: To access J28, you must remove the XMC module from the PCIe carrier, as
described in Section 2.3.
Jumper J28, pins 1−3, are used to program eFUSE in the Virtex−6 FPGA. Refer to the
Xilinx Virtex−6 FPGA Configuration Guide (Xilinx document UG360) for further infor−
mation about using this capability.
Table 2−5: Virtex−6 Program eFUSE Enable −Jumper Block J28
Jumper Pins Function Installed Removed
Pins 1 −3 Virtex−6 Program eFUSE Enabled Disabled *
Pins 2 −4 no function −−
* Factory Default Setting
J28
Figure 2−4: Model 71661 Main PCB Connector Side Jumpers
J28

Page 16 Pentek Model 78661 Installation Manual
Rev.: 1.7
2.6 XMC Module LEDs
The following describes the Model 71661 PCB LEDs, labeled Dnn, that provide general
operating status of the board. These LEDs are positioned on the solder side of the PCB,
as illustrated below, and are visible through the heat−sink mounted on the PCB. The
use of each LED is indicted in Table 2−6 below.
Table 2−6: PCB LED Use
LED USE
D1 Yellow LED indicates PCI Express Gen 2 operation
D2 & D3 Yellow LEDs indicate PCI Express Active Lanes:
D4 Green LED indicates PCI Express link has been established
D6 Green LED for user applications
D14 Red LED indicates temperature fault from the main PCB LM83
D15 Red LED indicates temp/volt fault from the System Monitor
D16 Green LED indicates FPGA configuration done
D17 Red LED indicates FPGA configuration initiated
D18 Yellow LED indicates FPGA configuration active
ON
12345678
ON 12345678
D1
D2
D3
D4
D14
D17D18
D16
D15
D6
Figure 2−5: Model 71661 Main PCB, Solder Side LEDs
D15
D2
D3
D4
D1
D6
D16
D18
D17
D14
x1 x2 x4 x8
D2 Off On Off On
D3 Off Off On On

Pentek Model 78661 Installation Manual Page 17
Rev.: 1.7
2.7 PCIe Carrier Jumpers
The following subsections describe user operating parameters that are set by shorting
jumpers on the Model 7806 PCIe carrier PCB. Refer to Section 2.8 for the DIP switch
settings on the carrier PCB.
As shipped from the factory, all jumpers on the carrier have been factory set for the
configuration shipped. The operating parameters they select may or may not meet
your requirements. Before installing your 78661 assembly onto a PCIe baseboard,
review the following subsections to determine whether you need to change any of these
settings.
The following shows the location of all jumpers and switches on the 7806 carrier PCB.
Note
The user should not change jumpers that are not described in these pages—
these are reserved for factory test and setup purposes only.
J4
F1
D1
D5
D4
D3
D6
R6
J15
XMC
Site
J16 J14
Cooling
Area
1
1
3
J22
J23
J19
J18
J20
J21 J5
J3
J8
R5
2
4
1
3
1
3
1
3
1
3
1
3
J17
J2
Figure 2−6: Model 7806 PCIe Carrier PCB Connector Side −Jumpers & Switches
SW1
J17
J22
J19
J18
J20
J21

Page 18 Pentek Model 78661 Installation Manual
Rev.: 1.7
2.7 PCIe Carrier Jumpers (continued)
2.7.1 XMC−PCIe Serial Bus Enable
Jumper block J17 enables or disables the PCI Express SM bus (SMDAT/
SMCLK) to the XMC site I2C serial bus (MSDA/MSCL). The following table
shows the jumper settings.
NOTE: To access J17, you must remove the XMC module from the PCIe
carrier, as described in Section 2.3.
2.7.2 JTAG Signal Select
Jumper blocks J18, J19, j20, j21, and J22 select the signal source for JTAG
operation, from either the onboard J4 JTAG connector (Section 2.10.2) or the
XMC connector. The following table shows the jumper settings.
Table 2−7: XMC−PCIe Serial Bus Enable −Jumper Block J17
Jumper Pins Function Installed Removed
Pins 1 −3 PCIe SMDAT to XMC MSDA Enabled Disabled *
Pins 2 −4 PCIe SMCLK to XMC MSCL Enabled Disabled *
* Factory Default Setting
Table 2−8: JTAG Signal Select −Jumper Blocks J18, J19, J20, J21, J22
Jumper Block JTAG Signal Jumper Pins Signal Source
J18 TMS (Test
Mode Select) Pins 1 −3 * Use JTAG J4 Connector TMS
Pins 2 −4 Use XMC interface XMC_TMS
J19 TCK (Test
Clock) Pins 1 −3 * Use JTAG J4 Connector TCK
Pins 2 −4 Use XMC interface XMC_TCK
J20 TDI (Test
Data In) Pins 1 −3 * Use JTAG J4 Connector TDI
Pins 2 −4 Use XMC interface XMC_TDI
J21 TDO (Test
Data Out) Pins 1 −3 * Use JTAG J4 Connector TDO
Pins 2 −4 Use XMC interface XMC_TDO
J22 TRST (Test
Reset) Pins 1 −3 Use JTAG J4 Connector TRST_N
Pins 2 −4 * Use XMC interface XMC_TRST_N
* Factory Default Setting −For proper JTAG operation, all jumpers
should be set to 1−3 except J22, which should be set to 2−4.

Pentek Model 78661 Installation Manual Page 19
Rev.: 1.7
2.8 PCIe Carrier Switches
This section describes operating parameters that are set by DIP switches on the Model
7806 carrier PCB. See Figure 2−6 on page 17 for location of these switches on the PCB.
Refer to Section 2.7 for the jumper settings on the carrier PCB.
As shipped from the factory, all switches on the carrier PCB have been factory set for
the configuration shipped. The default parameters they select may or may not meet
your requirements. Before installing your 78661 assembly onto a PCIe baseboard,
review the following table to determine whether you need to change any of these set−
tings.
Switch SW1 selects XMC interface modes for the XMC module. The following table
describes the different mode selections for each switch position.
Table 2−9: XMC Modes −Switch SW1
Switch OFF Function ON Function Description
SW1−1GA0 is pulled to 3.3V on
the XMC connector * Ties GA0 to GND on the XMC connector Sets bit 0 of the XMC onboard EEPROM base address
SW1−2GA1 is pulled to 3.3V on
the XMC connector * Ties GA1 to GND on the XMC connector Sets bit 1 of the XMC onboard EEPROM base address
SW1−3GA2 is pulled to 3.3V on
the XMC connector * Ties GA2 to GND on the XMC connector Sets bit 2 of the XMC onboard EEPROM base address
SW1−4MVMRO is pulled to 3.3V
on the XMC connector * Ties MVMRO on the XMC connector to GND
When MVMRO is pulled high to 3.3V,
the XMC onboard EEPROM cannot
be written to.
SW1−5ROOT0 is pulled to 3.3V
on the XMC connector * Ties ROOT0 on the XMC connector to GND
When ROOT0 is pulled to GND, the
XMC card can function as a root
complex and assign base addresses
to other devices on the PCI express
and PCI buses
SW1−6SHUTDOWN_12V_N is
pulled to 3.3V * Ties SHUTDOWN_12V_N to GND
When SHUTDOWN_12V_N is pulled to
GND, the −12V XMC power supply is
shut down
SW1−7Not used
SW1−8Not used
* Factory Default Setting −all Switches OFF