VXI Technology SMP7500 User Manual
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SMP7500
OPEN COLLECTOR
IGITAL I/O MODULE
D
USER’S
ANUAL
M
P/N: 82-0058-000
Released July 31, 2009
VXI Technology, Inc.
2031 Main Street
Irvine, CA 92614-6509
(949) 955-1894
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bus
VXI Technology, Inc.
2
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TABLE OF CONTENTS
INTRODUCTION
T
ABLE OF CONTENTS................................................................................................................................................3
Certification..........................................................................................................................................................5
Warranty...............................................................................................................................................................5
Limitation of Warranty.........................................................................................................................................5
Restricted Rights Legend......................................................................................................................................5
DECLARATION OF CONFORMITY...............................................................................................................................6
GENERAL SAFETY INSTRUCTIONS.............................................................................................................................7
Terms and Symbols..............................................................................................................................................7
Warnings ..............................................................................................................................................................7
SUPPORT RESOURCES ...............................................................................................................................................9
SECTION 1..................................................................................................................................................................11
INTRODUCTION.......................................................................................................................................................11
Introduction ........................................................................................................................................................11
Features............................................................................................................................................................... 12
Description .........................................................................................................................................................12
Programming and Data Access...........................................................................................................................14
SECTION 2..................................................................................................................................................................17
PREPARATION FOR USE...........................................................................................................................................17
Introduction ........................................................................................................................................................17
Calculating System Power and Cooling Requirements......................................................................................17
Setting the Chassis Backplane Jumpers..............................................................................................................17
Setting the Logical Address................................................................................................................................18
Example 1......................................................................................................................................................18
Example 2......................................................................................................................................................19
Selecting the Extended Memory Space..............................................................................................................19
Front Panel Interface Wiring..............................................................................................................................20
Hardware Jumper Selection................................................................................................................................21
Hardware Resistor Network Pull-Up Selection..................................................................................................22
SECTION 3..................................................................................................................................................................25
PROGRAMMING.......................................................................................................................................................25
Introduction ........................................................................................................................................................25
Register Access...................................................................................................................................................25
Addressing..........................................................................................................................................................25
Description of Registers - A16...........................................................................................................................27
Description of SMIP II Module Registers - A24 / A32 - Extended Memory.....................................................35
Description of Registers – A24/A32 ..................................................................................................................36
Control Register BUSYN Select ........................................................................................................................41
Example of a Port Set as an Output....................................................................................................................44
Example of a Port Set as an Input.......................................................................................................................46
Example Of A Port Output Write To A Port Input Read ...................................................................................48
REGISTER ACCESS EXAMPLES ................................................................................................................................51
SECTION 4..................................................................................................................................................................53
COMMAND DICTIONARY.........................................................................................................................................53
Terminology.......................................................................................................................................................53
SECTION 5..................................................................................................................................................................55
THEORY OF OPERATION..........................................................................................................................................55
Introduction ........................................................................................................................................................55
VXI INTERFACE......................................................................................................................................................56
Device Transfers (Output Mode)........................................................................................................................56
SMP7500 Preface
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VXI Technology, Inc.
Direction.............................................................................................................................................................56
Clock Enable ......................................................................................................................................................56
Data Load ...........................................................................................................................................................56
Device Triggering (TTL Trigger).......................................................................................................................58
Device Transfers (Read Mode)...........................................................................................................................59
Direction.............................................................................................................................................................59
Clock Enable ......................................................................................................................................................59
Latch Data ..........................................................................................................................................................61
Read Data ...........................................................................................................................................................61
INDEX.........................................................................................................................................................................62
4 SMP7500 Preface
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CERTIFICATION
VXI Technology, Inc. (VTI) certifies that this product met its published specifications at the time of shipment from
the factory. VTI further certifies that its calibration measurements are traceable to the United States National
Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that
organization’s calibration facility, and to the calibration facilities of other International Standards Organization
members.
WARRANTY
The product referred to herein is warranted against defects in material and workmanship for a period of three years
from the receipt date of the product at customer’s facility. The sole and exclusive remedy for breach of any warranty
concerning these goods shall be repair or replacement of defective parts, or a refund of the purchase price, to be
determined at the option of VTI.
For warranty service or repair, this product must be returned to a VXI Technology authorized service center. The
product shall be shipped prepaid to VTI and VTI shall prepay all returns of the product to the buyer. However, the
buyer shall pay all shipping charges, duties, and taxes for products returned to VTI from another country.
VTI warrants that its software and firmware designated by VTI for use with a product will execute its programming
when properly installed on that product. VTI does not however warrant that the operation of the product, or
software, or firmware will be uninterrupted or error free.
LIMITATION OF WARRANTY
The warranty shall not apply to defects resulting from improper or inadequate maintenance by the buyer, buyersupplied products or interfacing, unauthorized modification or misuse, operation outside the environmental
specifications for the product, or improper site preparation or maintenance.
VXI Technology, Inc. shall not be liable for injury to property other than the goods themselves. Other than the
limited warranty stated above, VXI Technology, Inc. makes no other warranties, express or implied, with respect to
the quality of product beyond the description of the goods on the face of the contract. VTI specifically disclaims the
implied warranties of merchantability and fitness for a particular purpose.
RESTRICTED RIGHTS LEGEND
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subdivision (b)(3)(ii) of
the Rights in Technical Data and Computer Software clause in DFARS 252.227-7013.
VXI Technology, Inc.
2031 Main Street
Irvine, CA 92614-6509 U.S.A.
SMP7500 Preface
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VXI Technology, Inc.
D ECLARATION OF C ONFORMITY
Declaration of Conformity According to ISO/IEC Guide 22 and EN 45014
ANUFACTURER’S NAME VXI Technology, Inc.
M
ANUFACTURER’S ADDRESS 2031 Main Street
M
Irvine, California 92614-6509
RODUCT NAME Open Collector Digital I/O Module
P
ODEL NUMBER(S) SMP7500
M
RODUCT OPTIONS All
P
RODUCT CONFIGURATIONS All
P
VXI Technology, Inc. declares that the aforementioned product conforms to the requirements of
the Low Voltage Directive 73/23/EEC and the EMC Directive 89/366/EEC (inclusive 93/68/EEC)
and carries the “CE” mark accordingly. The product has been designed and manufactured
according to the following specifications:
AFETY EN61010 (2001)
S
EMC EN61326 (1997 w/A1:98) Class A
CISPR 22 (1997) Class A
VCCI (April 2000) Class A
ICES-003 Class A (ANSI C63.4 1992)
AS/NZS 3548 (w/A1 & A2:97) Class A
FCC Part 15 Subpart B Class A
EN 61010-1:2001
The product was installed into a C-size VXI mainframe chassis and tested in a typical configuration.
I hereby declare that the aforementioned product has been designed to be in compliance with the relevant sections
of the specifications listed above as well as complying with all essential requirements of the Low Voltage Directive.
June 2006
Steve Mauga, QA Manager
6 SMP7500 Preface
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Review the following safety precautions to avoid bodily injury and/or damage to the product.
These precautions must be observed during all phases of operation or service of this product.
Failure to comply with these precautions, or with specific warnings elsewhere in this manual,
violates safety standards of design, manufacture, and intended use of the product.
Service should only be performed by qualified personnel.
TERMS AND SYMBOLS
These terms may appear in this manual:
WARNING
CAUTION
These symbols may appear on the product:
GENERAL SAFETY INSTRUCTIONS
Indicates that a procedure or condition may cause bodily injury or death.
Indicates that a procedure or condition could possibly cause damage to
equipment or loss of data.
ATTENTION - Important safety instructions
WARNINGS
Frame or chassis ground
Indicates that the product was manufactured after August 13, 2005. This mark is
placed in accordance with EN 50419, Marking of electrical and electronic
equipment in accordance with Article 11(2) of Directive 2002/96/EC (WEEE).
End-of-life product can be returned to VTI by obtaining an RMA number. Fees
for take-back and recycling will apply if not prohibited by national law.
Follow these precautions to avoid injury or damage to the product:
Use Proper Power Cord
Use Proper Power Source
Use Proper Fuse
To avoid hazard, only use the power cord specified for this product.
To avoid electrical overload, electric shock, or fire hazard, do not
use a power source that applies other than the specified voltage.
To avoid fire hazard, only use the type and rating fuse specified for
this product.
SMP7500 Preface
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WARNINGS (CONT.)
Avoid Electric Shock
Ground the Product
Operating Conditions
Improper Use
VXI Technology, Inc.
To avoid electric shock or fire hazard, do not operate this product
with the covers removed. Do not connect or disconnect any cable,
probes, test leads, etc. while they are connected to a voltage source.
Remove all power and unplug unit before performing any service.
Service should only be performed by qualified personnel.
This product is grounded through the grounding conductor of the
power cord. To avoid electric shock, the grounding conductor must
be connected to earth ground.
To avoid injury, electric shock or fire hazard:
- Do not operate in wet or damp conditions.
- Do not operate in an explosive atmosphere.
- Operate or store only in specified temperature range.
- Provide proper clearance for product ventilation to prevent
overheating.
- DO NOT operate if any damage to this product is suspected.
Product should be inspected or serviced only by qualified
personnel.
The operator of this instrument is advised that if the equipment is
used in a manner not specified in this manual, the protection
provided by the equipment may be impaired.
Conformity is checked by inspection.
8 SMP7500 Preface
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Support resources for this product are available on the Internet and at VTI Instruments customer
support centers.
VTI Instruments Corp.
World Headquarters
VTI Instruments Corp.
2031 Main Street
Irvine, CA 92614-6509
Phone: (949) 955-1894
Fax: (949) 955-3041
VTI Instruments
Cleveland Instrument Division
5425 Warner Road
Suite 13
Valley View, OH 44125
Phone: (216) 447-8950
Fax: (216) 447-8951
VTI Instruments
Lake Stevens Instrument Division
3216 Wetmore Avenue, Suite 1
Everett, WA 98201
Phone: (949) 955-1894
Fax: (949) 955-3041
VTI Instruments, Pvt. Ltd.
Bangalore Instrument Division
642, 80 Feet Road
Koramangala IV Block
Bangalore – 560 034
India
Phone: +91 80 4040 7900
Phone: +91 80 4162 0200
Fax: +91 80 4170 0200
Technical Support
Phone: (949) 955-1894
Fax: (949) 955-3041
E-mail:
Visit
http://www.vtiinstruments.com for worldwide support sites and service plan information.
SUPPORT RESOURCES
support@vtiinstruments.com
SMP7500 Preface
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VXI Technology, Inc.
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A
SECTION 1
INTRODUCTION
INTRODUCTION
The SMP7500 is a high-performance I/O module that has been designed for high data throughput
and flexibility of configuration. The instrument uses direct register access for very high-speed data
input and retrieval.
The SMP7500 is a member of the VXI Technology SMIP II™ (Switch Modularity Instrumentation
Platform) family and is available as a 96-channel, single SMIP Plug-In Module. As many as six
SMP7500s may be configured in a single double-slot VXI module, and 2 in a single-wide VXI
module. This would allow as many as 576 for a double-wide or 192 digital I/O for a single-wide
VXI Module. In addition, the SMP7500 may be combined with any of the other members of the
SMIP family to form a customized and highly integrated instrument/switch test solution. This
allows the user to reduce system size and cost by combining the SMP7500 with another
instrument/switch function in a single wide, C-size VXIbus module.
I
N
T
V
X
I
B
SMIP
INTERFACE
U
S
IGURE 1-1: SMIP™ SWITCH MODULARITY INSTRUMENTATION PLATFORM
F
E
R
N
L
S
M
I
P
B
U
S
SMIP SWITCH
MODULE #1
SMIP SWITCH
MODULE #2
SMIP SWITCH
MODULE #3
SMIP SWITCH
MODULE #4
SMIP SWITCH
MODULE #5
SMIP SWITCH
MODULE #6
SMP7500 Introduction 11
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VXI Technology, Inc.
Regardless of whether the SMP7500 is configured with other SMP7500 modules or with other
SMIP II modules, each group of 96 channels is treated as an independent plug-in in the SMIP II
module and as such, each group has its own FAIL/POWER and ACCESS/ERROR indicators.
M
M
M
O
D
U
L
E
#0
M
O
D
U
L
E
#1
M
O
D
U
L
E
#2
M
O
D
U
L
E
#5
O
O
D
D
U
U
L
L
E
E
#0
#1
M
M
O
O
D
D
U
U
L
L
E
E
#3
#4
FEATURES
DESCRIPTION
SMP1100 SMP1200
F
IGURE 1-2: FRONT PANEL LAYOUT
• 96 Channels, 12 groups of 8 bits. Up to 576 channels in a double-slot C-size card, up to
192 channels in a single C-size card.
• Group-wise programmable, as an input or an output, through user TTL input or VXI A24/32
registers.
• Group-wise programmable polarity through VXI A24/32 registers as an active high or low.
• Input: 0 V to 60 V, V
• Output: Open collector (N-DMOS), 0 V to 60 V, up to 300 mA continuous with over-voltage
and over-current protection.
• Data throughput: 5 µs typical system speeds, 200 kilobytes per second (kb/s) using D8 access,
400 kb/s using D16 access.
• Data Input/Output Clock Sources: For each group, from Front Panel (F/P) clock input, or VXI
Register Writes.
• Capture clock edge programmable as rising edge or falling edge.
• Register based data access for fast throughput.
The SMP7500 Open Collector Digital I/O module is a high performance I/O module that has been
designed for high voltage, current and data throughput. The instrument uses direct register access
for very high-speed data through-put.
IN (high)
≥ 2.0 V, V
≤ 1.5 V, input impedance ≥ 65 kΩ.
IN(low)
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A single SMP7500 provides 96 open collector digital I/O line that are configurable as inputs or
outputs in twelve groups of 8 channels each. The module can drive up to 60 V with sink current of
up to 300 mA per channel. Each group of 8 bits is referred as a PORT. Each PORT can be
configured as an input port or an output port under program control. The SMP7500 has the
flexibility to configure the sourcing of the input and output clocks from either the front panel (F/P
GND_I/O) (one input per PORT), or via a VXI A24/A32 control register. There is also a Global
Clock Line from the front panel that may be user selected via hardware jumpers to drive selected
PORT clocks. By using the appropriate clocking configuration, very large numbers of channels
may by synchronized to collect or present data to a UUT (unit under test).
Each clock input is internally pulled to a logic high level and has an RC termination network to
reduce multiple clocking edges due to line ringing. The RC network consists of a 120 Ω resistor in
series with a 100 pF capacitor, giving a time constant of 12 ns.
The SMP7500 can be combined with any member of the SMIP II family to form a customized and
highly integrated instrument/switch.
SMP7500 Introduction 13
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PROGRAMMING AND DATA ACCESS
Register-based Data Access: The I/O ports are directly mapped into the VXI user
SMIP INTERFACE
MODULE
DATA
ADDRESS
CONTROL
BUSYN
Backplane Load
Transparent
Polarity
ADDRESS
CONTROL
VXI BACKPLANE
DATA
TTL
TRIGGER
BUS
0-7
Control
Trace
Memory
Control
I/O Data
Buffer
Data
WR Event
Relay Req. 000Ch Write Event
SMP7500 MODULE
Control
R/B
Polarity
Latched
Output
Data
Buffer
R/B
PolarityControl
Over Current
Reset
Control
All Other
Available F/P
CLK Lines
Control
VXI Technology, Inc.
definable registers in the A24 or A32 address space.
Data access occurs in approximately 500 ns,
depending on the controller and software used.
USER CONNECTOR
GND_I/O
CLAMP
Fly Back Protection Diode
DATA
GND_CLK
GLOBAL
CLK
Control
Writes to
Specific Port
Addresses
Over
Current
Sense /
Control
Immediate
Double
Buffered
Over Current Sense
Shut Down
Control
Relay Req. 000Ch Write Event
WR EVENT
Output
Drivers
ISENSE
2
2
Polarity Enable
47k
22
200K
33K
47K
120
100pf
User Selectable
HW Jumpers
User Selectable
HW Jumpers
+5V +12V +24V
User Configurable 100K
Pull-Up Resistor Network (SIP)
User Selectable
HW Jumpers
Off To All Other Ports
F
IGURE 1-3: SMP7500 MODULE BLOCK DIAGRAM
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SMP7500 SPECIFICATIONS
GENERAL SPECIFICATIONS
NUMBER OF CHANNELS
DIRECTION
DATA ACCESS TYPES
DATA THROUGHPUT
PHYSICAL INTERFACE
CHANNEL INPUT CHARACTERISTICS
V
V
V
IN(high)
IN(low)
IN(max)
Input Impedance
CHANNEL OUTPUT CHARACTERISTICS
V
OUT(max)
Current Sink (Maximum)
Switch On Time
CLOCK AND CONTROL INPUT CHARACTERISTICS
V
V
IN(high)
IN(low)
Current In (VIN = 5.0 V)
DATA INPUT CLOCK SOURCES
DATA OUTPUT CLOCK SOURCES
TTL TRIGGER OUTPUT SOURCES
CLOCKED INPUT DATA HOLD
POWER REQUIREMENTS
COOLING REQUIREMENTS
96 (12 groups of 8 bits)
Selectable as input or output
Direct register access
5 µs typical system (500 µs register cycle time)
200 kb/s using D8 access
400 kb/ using D16 access
N channel DMOS transistor (TPIC2601KTC for rev. A PCBs, STS4DNF60L
for Rev. B or higher) with a current protection circuit on the output side, and a
voltage divider and voltage comparator on the input side
≥ 2.0 V
≤ 1.5 V
≤ 60 V
≥ 65 kΩ
≤ 60 V
≤ 300 mA
≤ 1 µs
> 2.0 V
< 0.8 V
< 10 µA
12 Front Panel, plus 1 Global Clock, A24/A32 Register Write
12 Front Panel, A24/A32 Register Write
Board Busyn controlled
≥ 2 µs
+5 V @ 864 mA, +12 V @ 60 mA
0.4 L/s
SMP7500 Introduction 15
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SECTION 2
PREPARATION FOR USE
INTRODUCTION
When the SMP7500 is unpacked from its shipping carton, the contents should include the
following items:
(1) SMP7500 VXIbus module
(1) SMP7500 Open Collector Digital I/O Module User’s Manual (this manual)
All components should be immediately inspected for damage upon receipt of the unit.
Once the SMIP II is assessed to be in good condition, it may be installed into an appropriate C-
size or D-size VXIbus chassis in any slot other than slot zero. The chassis should be checked to
ensure that it is capable of providing adequate power and cooling for the SMIP II. Once the
chassis is found adequate, the SMIP II’s logical address and the chassis’ backplane jumpers
should be configured prior to the SMIP II’s installation.
CALCULATING SYSTEM POWER AND COOLING REQUIREMENTS
It is imperative that the chassis provide adequate power and cooling for this module. Referring to
the chassis operation manual, confirm that the power budget for the system (the chassis and all
modules installed therein) is not exceeded and that the cooling system can provide adequate
airflow at the specified backpressure.
It should be noted that if the chassis cannot provide adequate power to the module, the instrument
might not perform to specification or possibly not operate at all. In addition, if adequate cooling is
not provided, the reliability of the instrument will be jeopardized and permanent damage may
occur. Damage found to have occurred due to inadequate cooling could also void the warranty of
the module.
SETTING THE CHASSIS BACKPLANE JUMPERS
Please refer to the chassis operation manual for further details on setting the backplane jumpers.
SMP7500 Introduction 17
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SETTING THE LOGICAL ADDRESS
The logical address of the SMIP II is set by two rotary switches located on the top edge of the
interface card, near the backplane connectors. Each switch is labeled with positions 0 through F.
The switch closer to the front panel of the module is the least significant bit (LSB or “Front”),
and the switch located towards the back of the module is the most significant bit (MSB or
“Back”). To set the Logical Address (LA), simply rotate the pointer to the desired value. For
example, to set the LA to 25, first convert the decimal number to the hexadecimal value of 19.
Next, set the back switch to 1, and the front switch to 9. See
conversion examples:
Example 1
VXI Technology, Inc.
Figure 2-1. Here are a couple of
LA
(decimal)
Divide
by 16
MSB LSB
25 25 / 16 = 1 w/ 9 remaining Divide the decimal value by 16 to get
the MSB and the LSB.
= 0001 1001 The 1 is the MSB, and the remainder of
9 is the LSB.
= 1 9 Convert to hexadecimal. Set the back
switch to 1 and the front switch to 9.
BACK FRONT
5
4
6
3
2
1
0
F
F
IGURE 2-1: LOGICAL ADDRESS EXAMPLE 1
7
8
9
A
B
E
C
D
Here is another way of looking at the conversion: LA = (back switch x 16) + front switch
LA = (1 x 16) + 9
LA = 16 + 9
LA = 25
4
5
6
3
2
1
0
F
7
8
9
A
B
E
C
D
18 SMP7500 Programming
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Example 2
LA
(decimal)
Divide
by 16
MSB LSB
200 200 / 16 = 12 w/ 8 remaining Divide by 16.
= 1100 1000 Convert to MSB and LSB.
= C 8 Convert to hexadecimal. Set the back
switch to C and the front switch to 8.
BACK FRONT
5
4
6
3
2
1
0
F
F
IGURE 2-2: LOGICAL ADDRESS EXAMPLE 2
7
8
9
A
B
E
C
D
Set the address switches to FF (factory default) for dynamic configuration. Upon power-up, the
resource manager will assign a logical address. See Section F - Dynamic Configuration in the
VXIbus Specification for further information.
There is only one logical address per SMIP II base unit. Address assignments for individual
modules are handled through the A24/A32 address space allocation.
4
5
6
3
2
1
0
F
7
8
9
A
B
E
C
D
SELECTING THE EXTENDED MEMORY SPACE
The Extended Memory Space of the SMIP II is set by a dip-switch that is located on the bottom
edge of the interface card. Position 1, located to the left on the dip-switch, selects between A24
and A32 memory address space. In the UP position, the SMIP II will request A24 space. In the
DOWN position, the SMIP II will request A32 space. (Position 2 is not currently used.) The
selection of the address space should be based upon the memory allocation requirements of the
system that the SMIP II module will be installed. The amount of memory allocated to the SMIP II
module is independent of the address space selected.
SMP7500 Programming 19
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