Acces I/O products MPCIE-ISODIO-16 User manual

ACCES I/O Products, Inc. 858 550 9559 www.ACCES.IO
10623 Roselle Street 800 326 1649 http://acces.io/mPCIe-ISODIO-16
San Diego CA 92121-1506 USA [email protected] MADE IN THE USA
ISOLATED DIGITAL INPUT &OUTPUT
BOARD FOR MINI PCI EXPRESS
HARDWARE MANUAL
MODEL MPCIE-ISODIO-16

ACCES I/O Products, Inc. MADE IN THE USA mPCIe-ISODIO-16 User Manual
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CHAPTER 1: QUICK START
It is recommended that you install the software package before
installing the PCI Express Mini Card (mPCIe) in your computer. You
can install the software1using a stand-alone installer downloaded
from the product page Manuals / Software tab on our website.
Run the installer you downloaded and follow the prompts to install
the software for your device.
Please note: during the installation you may be prompted regarding
the installation of non-WHQL-certified drivers; please carefully
confirm the digitally signed source of the drivers and accept the
installation.
Once the software has been installed, shut down your system and
carefully install the mPCIe card.
Re-start your system. Once the computer finishes booting your new
device should already be installed and ready for use; you can
confirm this by launching Device Manager and looking under the
“Data Acquisition” section. If, for any reason, the mPCIe displays a
warning icon, right-click and select “Update Driver”.
1In Linux or OSX please refer to the instructions in those directories.
CHAPTER 2: INTRODUCTION
PCI Express Mini Card (mPCIe), a low-profile small-footprint bus
standard originally intended for adding peripherals to notebook
computers, has become the de-facto standard for high-
performance, small form-factor devices in many applications.
FEATURES
•PCI EXPRESS MINI CARD (MPCIE)TYPE F1, WITH LATCHING I/O CONNECTOR
•8ISOLATED INPUTS,8ISOLATED OUTPUTS,3.3V SIGNALING
•USING THE LATEST ISOLATION TECHNOLOGY WITH 5000V ISOLATORS
•PER IPC-2221B: 1500V ISOLATION I/O-TO-COMPUTER ON ALL SIGNALS
•CHANGE-OF-STATE (COS) DETECTION IRQ GENERATION
•18KVESD DIODE PROTECTION
•OPTIONAL 9” CABLE (228MM)TO PANEL MOUNTABLE DB25F
•AVAILABLE INDUSTRIAL TEMP (-40°C TO +85°C), ROHS STANDARD
•ON-BOARD 32-BIT TIMER WATCHDOG TO RESET BOARD TO DEFAULT POWER-UP
VALUES
The mPCIe-ISODIO-16 card is well suited to complex environments,
mitigating otherwise challenging ground-loops, high-common-
mode, and transient voltage spikes common in electrically-noisy
industrial or factory locations.
The mPCIe-ISODIO-16 provides 8 isolated digital inputs and 8
isolated digital outputs. Featuring Tru-Iso™ I/O-to-PC isolation this
card provides a robust solution to common signal level and
grounding issues when used in electrically noisy environments; at up
to 1500V between I/O and the host computer, it’s like data
insurance.
Change of State (COS) detection and interrupt generation
capabilities are designed to relieve software from polling routines
that consume valuable processing time. Inputs can be programmed
for detecting state changes on their lines, in which any changes of
the bits (low-to-high or high-to-low) will generate an IRQ. An ISR
(interrupt service routine) then determines which bit changed state
and clears the interrupt.
CHAPTER 3: HARDWARE
This manual applies to model:
mPCIe-ISODIO-16
8 Isolated Inputs, 8 Isolated Outputs Card
This card model is a full-length “F1” mPCIe device (30 × 50.95 mm).
It is connected to a DB25F panel mounted connector via an available
9” (229mm) 20-conductor cable. The device is RoHS compliant.
INCLUDED IN YOUR PACKAGE
mPCIe-ISODIO-16 Isolated Digital I/O mPCIe card
Available accessories include:
CAB-mPCIe-ISODIO
ADAP25M
Cable Assembly, 20 pin to DB25F, 9”
25 Pin Screw Terminal Accessory
mPCIe-HDW-KIT2
Mounting hardware for 2mm
mPCIe-HDW-KIT2.5
Mounting hardware for 2.5mm
Contact the factory for information regarding additional accessories,
options, and specials that may be available to best fit your specific
application requirements, such as extended temperature, conformal
coating, or alternate cable lengths, to name a few.

ACCES I/O Products, Inc. MADE IN THE USA mPCIe-ISODIO-16 Uaser Manual
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CHAPTER 4: CONFIGURATION SETTINGS
There are no configuration settings on the mPCIe-ISODIO-16.
CHAPTER 5: PC INTERFACE
This product interfaces with a PC using a PCI Express Mini Card
(mPCIe) connection; a small-form-factor, high-performance, rugged
peripheral interconnect technology first introduced for use in
laptops and other portable computers.
mPCIe’s small size and powerful performance, combined with
perfect software compatibility with PCI and PCIe peripheral designs,
have led to its recent adoption as a go-to standard for embedded
Data Acquisition and Control, and many other applications.
Although mPCIe is a broadly-adopted industry standard, the actual
connection to the computer shares a specification with mSATA:
both mSATA and mPCIe use the same edge-connector. In fact, well-
designed PCs can automatically detect and configure their onboard
connectors to work with either mPCIe or mSATA devices – and,
according to the standards for mPCIe and mSATA they are supposed
to do so! However, some PC manufacturers ship computers that
only support mSATA devices. Please confirm in your PC
documentation that your edge-connector is actually PCI Express
Mini Card compliant before installing this, or any, mPCIe card.
Damage might occur if you install an mPCIe device into a computer
that only supports mSATA.
mPCIe defines mounting holes for securing the otherwise loose end
of the card, so it is impossible for these cards to wiggle or flap
themselves loose (which was a recurring problem with the older PCI
Mini devices). Eliminating this concern for PCI Express Mini Cards is
a major reason this standard has seen rapid adoption by the Data
Acquisition and Control industry.
The mPCIe standard, like its PCI Mini Card predecessor, was
designed assuming use primarily in Laptop or Notebook and similar
devices, where physical dimension is often the paramount design
constraint. In Data Acquisition and Control applications low-weight
combined with vibration tolerance tend to be of more concern.
CHAPTER 6: I/O INTERFACE
DB25F Pinouts on CAB-mPCIe-ISODIO cable assembly
Signal Definitions
DB-25 Female Pinout
Signal
Meanings
1
IN 0
14
OUT 0
IN
Isolated Input
2
IN 1
15
OUT 1
OUT
Isolated Output
3
IN 2
16
OUT 2
ISOGND
Isolated Ground
4
IN 3
17
OUT 3
VCCIO
Fused Isolated +3.3VDC @ 0.05A*
5
IN 4
18
OUT 4
N/C
No Connection
6
IN 5
19
OUT 5
*Keep cumulative power draw from I/O
sourcing and VCCIO <50mA
7
IN 6
20
OUT 6
8
IN 7
21
OUT 7
9
N/C
22
N/C
10
N/C
23
N/C
11
ISOGND
24
N/C
12
ISOGND
25
VCCIO
13
ISOGND
Custom hardware interfaces can be produced to fit your specific
application requirement.
CHAPTER 7: SOFTWARE INTERFACE
The simplest way to program for the device is using legacy-
compatibility mode: the device boots into this mode. In this mode,
the unit provides I/O-mapped registers: 2 DIO registers, enable
register and a 32-bit register for the Watchdog Timer.
I/O Registers at BAR [2]
Register offset (hex)
Write Operation
Read Operation
Isolated Outputs [ + 0 ]
0-7 output
Output 0-7 read-
back
Isolated Inputs [ + 1 ]
unused
Input 0-7 input
Buffer Enable [ + A ]
Control DIO Buffer
Enable
DIO Buffer Enable
Read-back
Cos Mask [ + B ]
Change-of-State
Enable
Change-of-State
Enable Read-back
IRQ Clear [ + F ]
Clear IRQ
unused
IRQ Clear/Status [ + 29 ]
Clear IRQ
IRQ Status
Watchdog Timer
[+30..+33 ]
32-bit Watchdog
Timeout Duration
Divisor
Read-back of
Watchdog Timeout
Duration Divisor
In the following bit-level register descriptions the column labeled
“Dir” indicates read or write operation, with the following notation:
R: Read function, and W: Write function. RW indicates both.
r: read, and w: write, but less-commonly useful than R or W
+ 0
Dir
D7
D6
D5
D4
D3
D2
D1
D0
Out #
rW
7
6
5
4
3
2
1
0
Writing one byte to +0 will control all 8 isolated outputs. Setting a
bit to 1 sets the corresponding isolated output, while clearing a bit
to 0 turns it off. Reading a byte will provide the currently
commanded output state (read-back).
+ 1
Dir
D7
D6
D5
D4
D3
D2
D1
D0
In #
R
7
6
5
4
3
2
1
0
Reading from +1 returns 8 bits. Each bit indicates the level that was
detected at the corresponding isolated input.
+ A
Dir
D7
D6
D5
D4
D3
D2
D1
D0
ENABLE
RW
EN
Setting a bit to 1 at D0 at this register disables the DIO buffer, while
clearing the bit to 0 enables it.
+ B
Dir
D7
D6
D5
D4
D3
D2
D1
D0
ENABLE
RW
CoS
Setting a bit to 1 at D0 at this register masks the Change-of-State
for the inputs, while clearing the bit to 0 enables it.
+ F
Dir
D7
D6
D5
D4
D3
D2
D1
D0
Clear
W
0
Writing any value to +F clears all pending IRQ source latches.
+ 29
Dir
D7
D6
D5
D4
D3
D2
D1
D0
IRQ Clr
W
Write 0xFF to clear pending IRQs
IRQ Stat
R
INT

ACCES I/O Products, Inc. MADE IN THE USA mPCIe-ISODIO-16 Uaser Manual
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Write “1” to clear the pending IRQ. Bits D1 through D7 are
reserved, for best results write “1” to all bits (0xFF).
Reading will give the current IRQ latch state. Bit D0 “1” means “an
IRQ was generated”.
+ 30…+33
Dir
D31…D0
WDG
rW
32-Bit Timer Value
Upon power-up the FPGA will continuously "pet" the external
TPS3820 watchdog chip's WDI input with an FPGA-generated pulse-
train.
A DWORD write to register base+30h will use the value written as
the timeout value for the watchdog and will begin the countdown
process. Note: Byte/Word writes are ignored, must be 32-bit. This
value is the desired Watchdog Timeout duration as a number of
8ns "ticks". (Divide 125000000 by the desired timeout, in
nanoseconds, to calculate the desired register (divisor) load value.)
If the count value decrements to 0 the FPGA will stop "petting" the
TPS3820 and it will (after the ~200ms time out period) "bark" (for
~25ms), resetting the FPGA.
Any write or read of any valid mPCIe-ISODIO-16 register will reload
the initial (or new, if it was a write to +30h) 32-bit divisor value and
the countdown process resumes.
After the TPS3820 "barks" the FPGA resets to its default values and
will behave in the same way as at power-up.
PCI Express Mini Card Plug-and-Play Data
Vendor / Device ID
Card Type
0x494F / 0x0DC9
mPCIe-ISODIO-16
Available Downloads
The latest information can always be found on the product page on
the website. Here are some useful links:
Links and useful downloads
Main site
http://acces.io
Product’s page
acces.io/mPCIe-ISODIO-16
This manual
acces.io/MANUALS/mPCIe-ISODIO-16.pdf
Windows Software
Install Package
acces.io/files/packages/mPCIe-ISODIO-16
Install.exe

ACCES I/O Products, Inc. MADE IN THE USA mPCIe-ISODIO-16 User Manual
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CHAPTER 8: SPECIFICATIONS
PC Interface
PCI Express Mini Card
Type F1 “Full Length”
Isolated Inputs
Number
8
Voltage
Logic High
Logic Low
2.0V to 5V
0V to 0.8V
Isolated Outputs
Number
8
Voltage
Logic High
Logic Low
Power Output
2.0V (min), source 32mA
0.55V (max), sink 64mA
+3.3VDC via 50mA polyfuse (resetting)
Environmental
Temperature
Operating
0°C to +70°C
-40°C to +85°C (-T option)
Storage
-65°C to +150°C
Humidity
5% to 95% RH, non-condensing
Power Required
+3.3VDC
+1.5VDC
500mA
415mA
Physical
Weight
7.2g
Size
Length:
Width:
50.95mm (2.006”)
30.00mm (1.181”)
I/O connectors
On-card:
Molex 501190-2017 20-pin latching
Mating
Molex 501189-2010
On-cable
Female, D-Sub Miniature, 25-pin
Mating
Male, D-Sub Miniature, 25-pin
Isolation
Tru-Iso
IPC-2221B
I/O to PC
1500 V peak (AC or DC)
UL-1577
UL recognition (pending): 5000 V rms for 1 minute
Careful attention has been paid to isolation design, including extensive keep-out zones and
hand-routed circuit paths, as well as component and material selection.
CHAPTER 9: CERTIFICATIONS
CE & FCC
These devices are designed to meet all applicable EM interference
and emission standards. However, as they are intended for use
installed on motherboards, and inside the chassis of industrial
PCs, important care in the selection of PC and chassis is important
to achieve compliance for the computer as a whole.
UL & TUV
No AC or DC voltages above 31V are consumed or produced
during normal operation of this device. This product is therefore
exempt from any related safety standards. Use it with confidence!
ROHS / LEAD-FREE STATEMENT
All models are produced in compliance with RoHS and various
other lead-free initiatives.
WARNING
A SINGLE STATIC DISCHARGE CAN DAMAGE YOUR CARD AND
CAUSE PREMATURE FAILURE! PLEASE FOLLOW ALL
REASONABLE PRECAUTIONS TO PREVENT A STATIC
DISCHARGE SUCH AS GROUNDING YOURSELF BY TOUCHING
ANY GROUNDED SURFACE PRIOR TO TOUCHING THE CARD.
ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING
WITH THE COMPUTER POWER OFF. ALWAYS TURN
COMPUTER POWER OFF BEFORE INSTALLING A CARD.
CONNECTING AND DISCONNECTING CABLES, OR INSTALLING
CARDS, INTO A SYSTEM WITH THE COMPUTER OR FIELD
POWER ON MAY CAUSE DAMAGE TO THE I/O CARD AND
WILL VOID ALL WARRANTIES, IMPLIED OR EXPRESSED.
WARRANTY
Prior to shipment, ACCES equipment is thoroughly inspected and
tested to applicable specifications. However, should equipment
failure occur, ACCES assures its customers that prompt service
and support will be available. All equipment originally
manufactured by ACCES which is found to be defective will be
repaired or replaced subject to the following considerations:
GENERAL
Under this Warranty, liability of ACCES is limited to replacing,
repairing or issuing credit (at ACCES discretion) for any products
which are proved to be defective during the warranty period. In
no case is ACCES liable for consequential or special damage
arriving from use or misuse of our product. The customer is
responsible for all charges caused by modifications or additions to
ACCES equipment not approved in writing by ACCES or, if in
ACCES opinion the equipment has been subjected to abnormal
use. "Abnormal use" for purposes of this warranty is defined as
any use to which the equipment is exposed other than that use
specified or intended as evidenced by purchase or sales
representation. Other than the above, no other warranty,
expressed or implied, shall apply to any and all such equipment
furnished or sold by ACCES.

ACCES I/O Products, Inc. MADE IN THE USA mPCIe-ISODIO-16 Uaser Manual
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TERMS AND CONDITIONS
If a unit is suspected of failure, contact ACCES' Customer Service
department. Be prepared to give the unit model number, serial
number, and a description of the failure symptom(s). We may
suggest some simple tests to confirm the failure. We will assign a
Return Material Authorization (RMA) number which must appear
on the outer label of the return package. All units/components
should be properly packed for handling and returned with freight
prepaid to the ACCES designated Service Center, and will be
returned to the customer's/user's site freight prepaid and
invoiced.
COVERAGE
FIRST THREE YEARS: Returned unit/part will be repaired and/or
replaced at ACCES option with no charge for labor or parts not
excluded by warranty. Warranty commences with equipment
shipment.
FOLLOWING YEARS: Throughout your equipment's lifetime, ACCES
stands ready to provide on-site or in-plant service at reasonable
rates similar to those of other manufacturers in the industry.
EQUIPMENT NOT MANUFACTURED BY ACCES
Equipment provided but not manufactured by ACCES is warranted
and will be repaired according to the terms and conditions of the
respective equipment manufacturer's warranty.
DISCLAIMER
The information in this document is provided for reference only.
ACCES does not assume any liability arising out of the application
or use of the information or products described herein. This
document may contain or reference information and products
protected by copyrights or patents and does not convey any
license under the patent rights of ACCES, nor the rights of others.