Advantech PCI-1753 User manual

PCI-1753/1753E
96/192-bit Digital I/O Card
User's manual

Copyright
This documentation and the software included with this product are
copyrighted 1999 by Advantech Co., Ltd. All rights are reserved.
Advantech Co., Ltd. reserves the right to make improvements in the
products described in this manual at any time without notice.
No part of this manual may be reproduced, copied, translated or
transmitted in any form or by any means without the prior written
permission of Advantech Co., Ltd. Information provided in this
manual is intended to be accurate and reliable. However, Advantech
Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties which may result from its use.
Acknowledgments
PC-LabCard is a trademark ofAdvantech Co., Ltd. IBM and PC are
trademarks of International Business Machines Corporation. MS-
DOS and Windows are trademarks of Microsoft Corporation. Intel and
Pentium are trademarks of Intel Corporation.
CE Notification
The PCI-1753/1753E, developed byADVANTECH CO., LTD., has
passed the CE test for environmental specifications when shielded
cables are used for external wiring. We recommend the use of
shielded cables. This kind of cable is available from Advantech.
Please contact your local supplier for ordering information.
Part No. 2003175300 1st Edition
Printed in Taiwan May 1999
On-line Technical Support
For technical support and service please visit our support website at
http://support.advantech.com

Contents
CHAPTER 1 General Information ......................... 1
1.1 Introduction ........................................................... 2
1.2 Features.................................................................. 4
1.3 Applications ........................................................... 4
1.4 Specifications....................................................... 5
1.5 Pin Assignments..................................................... 6
1.6 Block Diagram ....................................................... 7
CHAPTER 2 Installation ......................................... 9
2.1 Initial Inspection................................................... 10
2.2 Unpacking ............................................................ 10
2.3 Jumper Settings .....................................................11
2.4 Installation Instructions ........................................ 14
CHAPTER 3 Operation ......................................... 17
3.1Overview .............................................................. 18
3.2 Digital I/O Ports ................................................... 18
3.2.1 Introduction ...........................................................................................18
3.2.2 8255 Mode 0..........................................................................................18
3.2.3 Input/Output Control ............................................................................19
3.2.4 Initial Configuration ...............................................................................19
3.2.5 Dry Contact Support for Digital Input .................................................20
3.3 Interrupt Functions............................................... 21
3.3.1 Introduction ...........................................................................................21
3.3.2 IRQ Level ...............................................................................................21

3.3.3 Interrupt Control Registers ....................................................................21
3.3.4 Interrupt Source Control ........................................................................24
3.3.5 Interrupt Triggering Edge Control ..........................................................25
3.3.6 Interrupt Flag Bit ...................................................................................25
3.3.7 Pattern Match Interrupt Function .........................................................26
3.3.8 Change of State Interrupt Function .......................................................27
APPENDIX A Register Format of PCI-1753/
1753E................................................................... 29
A.1 PCI-1753 Register Format .......................................................................30
A.2 PCI-1753E Register Format .....................................................................31
APPENDIX B Pin Assignments of Cable PCL-
10268 ................................................................... 33

1
General Information
CHAPTER

2PCI-1753 User's Manual
1.1 Introduction
The PCI-1753 is a 96-bit digital I/O card for the PCI bus, which can
be extended to 192 digital I/O channels by connecting with its
extension board, PCI-1753E. The card emulates mode 0 of the 8255
PPI chip, but the buffered circuits offer a higher driving capability
than the 8255. The 96 I/O lines are divided into twelve 8-bit I/O
ports:A0, B0, C0,A1, B1, C1,A2, B2, C2,A3, B3 and C3. Users can
configure each port as input or output via software.
Easy to Install: Plug and Play
The PCI-1753 uses a PCI controller to interface the card to the PCI
bus. The controller fully implements the PCI bus specification Rev
2.1. All bus relative configurations, such as base address and inter-
rupt assignment, are automatically controlled by software.
Dry Contact Support for Digital Input
Each digital input channel at the PCI-1753/1753E accepts either 0 ~
5 VDC wet contact or dry contact inputs. This dry contact capability
allows the channel to respond to changes in external circuitry (e.g.,
the closing of a switch in the external circuitry) when no voltage is
present in the external circuit.
Reset Protection Fulfills the True Require-
ment of Industrial Applications
When the system is hot reset (the power is not turned off), the PCI-
1753/1753E can either retain the last I/O port settings and outputs
value, or return to its default configuration, depending on the jumper
setting. This function protects the system from wrong operations
during unexpected system resets.
Interrupt Functions Ensure Faster System
Response
Two lines of each port C (i.e., ports C0, C1, C2 and C3) are connected
to an interrupt circuit. The “Interrupt Control Register” of the PCI-

Chapter 1 Gerneral Information 3
1753/PCI-1753E controls how these signals generate an interrupt.
More than one interrupt request signals can be generated at the same
time, and then the software can process these request signals by ISR.
The multiple interrupt sources provide the card with more capability
and flexibility.
The PCI-1753/1753E also provides “Pattern Match” interrupt
function for portA0. The card monitors the states of portA0 and
compares them with a pre-set pattern. When the received state
matches the pre-set pattern, the PCI-1753/1753E generates an
interrupt signal to the system.
“Change of State” interrupt function is provided at port B0. When
any signal line of port B0 changes its state, the card generates an
interrupt to the system to handle this event.
These interrupt functions release the CPU from the burden of pulling
all I/O points, enabling a PC to handle more I/O points with higher
performance.
Cost Savings for Increasing the Number of
Input/Output Lines
Industrial users are needing more and more digital I/O lines to
transmit data or to monitor/control outside devices. To meet this
trend and to satisfy user’s budget considerations, Advantech has
developed an extension board for the PCI-1753 called the PCI-
1753E. The PCI-1753E has almost the same structure as the PCI-
1753, without the interface controller. It shares PCI-1753’s interface
controller through a 10-cm flat cable connecting, so users can spend
less money while doubling the number of input/output lines.
Accessories for PCI-1753/1753E
The PCI-1753/1753E uses a 100-pin SCSI female connector. For easy
signal wiring, a PCI-1753 can be connected to two ADAM-3968s by a
100-pin to 2x68-pin SCSI cable (part number PCL-10268). The
ADAM-3968 allows easy access for wiring the individual pins of a 68-
pin SCSI connector. An ADAM-3968/50 adapter board converts the
68-pin connector to two opto-22 compatible 50-pin box headers for
connecting the PCI-1753/1753E to daughterboards, such as PCLD-
782B and PCLD-785B.

4PCI-1753 User's Manual
1.2 Features
•96/192 TTL digital I/O lines
•Emulates mode 0 of 8255 PPI
•Buffered circuits for higher driving capacity than 8255
•Multiple-source interrupt handling
•Interrupt output pin for simultaneously triggering external devices
with the interrupt
•Output status read-back
•“Pattern match” and “Change of state” interrupt functions for
critical I/O monitoring
•Keeps I/O setting and digital output values when hot system reset
•Supports dry contact and wet contact
•High-density 100-pin SCSI connector
1.3 Applications
•Industrial AC/DC I/O devices monitoring and controlling
•Relay and switch monitoring and controlling
•Parallel data transfer
•TTL, DTL and CMOS logic signal sensing
•Indicator LED driving

Chapter 1 Gerneral Information 5
1.4 Specifications
I/O Channels 96 digital I/O lines (PCI-1753 only)
192 digital I/O lines (using PCI-1753E extension)
Programming Mode 8255 PPI mode 0
Input Signal Logic level 0: 0.8 V max.
Logic level 1: 2.0 V min.
Output Signal Logic level 0:0.44 V max. @ 24 mA (sink)
Logic level 1:3.76 V min. @ 24 mA (source)
Transfer Rate 1.6 Mbytes/sec (tested under DOS, K6 300MHz
CPU)
Power Consumption +5 V @ 400 mA (typical)
+5 V @ 2.7 A (max.)
Operating Temperature 0 ~ +60°C (32 ~ 140°F) (refer to IEC 68-2-1, 2)
Storage Temperature -20 ~ +70°C (-4 ~ 158°F)
Operating Humidity 5 ~ 95%RH non-condensing (refer to IEC 68-2-3)
Connector One 100-pin SCSI female connector
Dimensions PCI-1753: 175 x 100 mm (6.9" x 3.9")
PCI-1753E: 175 x 100 mm (6.9" x 3.9")
MTBF over 75,013 hrs @ 25°C, ground fix environment

6PCI-1753 User's Manual
1.5 Pin Assignments
PA01
PA02
PA03
PA04
PA05
PA06
PA07
PB01
PB00
PB02
PB03
PB04
PB05
PB06
PB07
PC01
PC00
PC02
PC03
PC04
PC05
PC06
PC07
GND
PA11
PA10
PA12
PA13
PA14
PA15
PA16
PA17
PB11
PB10
PB12
PB13
PB14
PB15
PB16
PB17
PC11
PC10
PC12
PC13
PC14
PC15
PC16
PC17
VCC
PA00 2
3
4
5
6
7
8
10
9
11
12
13
14
15
16
18
17
19
20
21
22
23
24
25
27
26
28
29
30
31
32
33
35
34
36
37
38
39
40
41
43
42
44
45
46
47
48
49
50
152
53
54
55
56
57
58
60
59
61
62
63
64
65
66
68
67
69
70
71
72
73
74
75
77
76
78
79
80
81
82
83
85
84
86
87
88
89
90
91
93
92
94
95
96
97
98
99
100
51 PA21
PA22
PA23
PA24
PA25
PA26
PA27
PB20
PB20
PB22
PB23
PB24
PB25
PB26
PB27
PC21
PC20
PC22
PC23
PC24
PC25
PC26
PC27
GND
PA31
PA30
PA32
PA33
PA34
PA35
PA36
PA37
PB31
PB30
PB32
PB33
PB34
PB35
PB36
PB37
PC31
PC30
PC32
PC33
PC34
PC35
PC36
PC37
VCC
PA20
PA00 ~ PA07 : I/O pins of Port A0
PA10 ~ PA17 : I/O pins of Port A1
PA20 ~ PA27 : I/O pins of Port A2
PA30 ~ PA37 : I/O pins of Port A3
PB00 ~ PB07 : I/O pins of Port B0
PB10 ~ PB17 : I/O pins of Port B1
PB20 ~ PB27 : I/O pins of Port B2
PB30 ~ PB37 : I/O pins of Port B3
PC00 ~ PC07 : I/O pins of Port C0
PC10 ~ PC17 : I/O pins of Port C1
PC20 ~ PC27 : I/O pins of Port C2
PC30 ~ PC37 : I/O pins of Port C3
GND : Ground
VCC : +5V voltage output (1A max.)

Chapter 1 Gerneral Information 7
Figure 1-1: PCI-1753/1753E Block Diagram
1.6 Block Diagram

8PCI-1753 User's Manual

Chapter 2 Installation 9
2
Installation
CHAPTER

10 PCI-1753 User's Manual
2.1 Initial Inspection
Before starting to install the PCI-1753/1753E, make sure there is no
visible damage on the card. We carefully inspected the card both
mechanically and electrically before shipment. It should be free of
marks and in perfect order on receipt.
As you unpack the PCI-1753/1753E, check it for signs of shipping
damage (damaged box, scratches, dents, etc.). If it is damaged or fails
to meet its specifications, notify our service department or your local
sales representative immediately. Also, call the carrier immediately
and retain the shipping carton and packing materials for inspection
by the carrier. We will then make arrangements to repair or replace
the unit.
2.2 Unpacking
The PCI-1753/1753E contains components that are sensitive and
vulnerable to static electricity. Discharge any static electricity on
your body to ground by touching the back of the system unit
(grounded metal) before you touch the board.
Remove the PCI-1753/1753E card from its protective packaging by
grasping the card's rear panel. Handle the card only by its edges to
avoid static discharge which could damage its integrated circuits.
Keep the antistatic package. Whenever you remove the card from the
PC, please store the card in this package for its protection.
You should also avoid contact with materials that hold static electrici-
ty such as plastic, vinyl and styrofoam.
Check the product contents inside the packing. In PCI-1753's
package, there should be one card, one CD-ROM, and this manual; in
PCI-1753E's package, there should be one card and a 10-cm 20-pin
flat cable. Please make sure nothing is missing.

Chapter 2 Installation 11
CN1
JP1
CN2
JPC0L
JPB0
JPC0H
JPA0
JPC1L
JPB1
JPC1H
JPC3H
JPC2H
JPB2
JPB3
JPC2L
JPC3L
JPA3
JPA1
JPA2
2.3 Jumper Settings
We designed the PCI-1753/1753E with ease-of-use in mind. It is a
"plug and play" card, i.e. the system BIOS assigns the system resourc-
es such as base address and interrupt automatically. There are only
two functions with 17 jumpers on the PCI-1753, and one function
with 16 jumpers on the PCI-1753E. The following section describes
how to configure the card. You may want to refer to the figure below
for help in identifying card components.
Figure2-1:Location ofconnectorsandjumpers
Jumper Settings to Set Ports as Input or
Output by Software
When the two pins of jumpers JPA0, JPB0, JPC0L, JPC0H, JPA1, JPB1,
JPC1L, JPC1H, JPA2, JPB2, JPC2L, JPC2H, JPA3, JPB3, JPC3L or
JPC3H are not shorted (i.e., by setting a jumper), the corresponding
ports are set to be configurable as input or output ports by software.
(JPA0 means jumper for portA0, JPB0 means jumper for port B0, etc.
See Table 2-1) If jumper JP1 is not enabled (i.e., by shorting the
upper two pins of JP1), all ports configured by software are automa-
tially set as input ports during system startup a reset, with a default
signal level of logic 1(high). (But see Jumper JP1 discussion below.)

12 PCI-1753 User's Manual
Using Jumpers to Set Ports as Output Ports
By shorting the two pins of the jumpers JPA0, JPB0, JPC0L, JPC0H,
JPA1, JPB1, JPC1L, JPC1H, JPA2, JPB2, JPC2L, JPC2H,JPA3, JPB3,
JPC3L or JPC3H, a user sets the corresponding ports to be output
ports. (JPA0 means jumper for portA0, JPB0 means jumper for port
B0, etc.) Shorting the two pins of a port's jumper disables the port
from being software configurable as an input port. The initial state of
each of these ports after system power on or reset will be logic 0
(voltage low), unless jumper JP1 determines otherwise. (See Jumper
JP1 below.)
Jumper JP1 Restores Ports to Their Condi-
tion Prior to Reset
Jumper JP1 gives the PCI-1753/1753E a new and valuable capability.
With JP1 enabled (i.e., by shorting the lower two pins of JP1), the PCI-
1753/1753E "memorizes" all port I/O settings and output values, and,
in the event of a "hot" reset, the settings and output values present at
the port just prior to reset are restored to each port following reset.
This feature applies to both ports set by software, and to ports
configured as output ports via jumper. Depending on the application,
this capability may allow a card to be reset without requiring a
complete shutdown of processes controlled by the card (since port
values are left unchanged and are interrupted only momentarily).
Complete loss of power to the chip clears chip memory. Thus, even if
JP1 is enabled, if the power to the card is disconnected, the card's
initial power-on state will be the state of an input port with voltage
high input (for software-set ports) or the state of an output port with
voltage low output (for jumper-set ports).
When jumper JP1 is not enabled (i.e., by shorting the upper two pins
of JP1), both power-off and reset results in ports returning to the state
of an input port with voltage high input (for software-set ports) or
returning to the state of output port with voltage low output (for
jumper-set ports).

Chapter 2 Installation 13
Names of Jumpers Function description
JPA0, JPA1, JPA2 and JPA3: Jumpers for
ports A0, A1, A2 and A3
JPB0, JPB1, JPB2 and JPB3: Jumpers for
ports B0, B1, B2 and B3
JPC0L, JPC1L, JPC2L and JPC3L: Jumpers
for low nibble of ports C0, C1, C2 and C3
JPC0H, JPC1H, JPC2H and JPC3H:
Jumpers for high nibble of ports C0, C1, C2
and C3
Sets port as an output port
Sets port to be software
configurable as input or
output (default)
JP1
Enables the reset
protection function.
All ports return to the state
held just prior to reset
Disables the reset
protection function.
All ports return to the default
state (for software-set) or to
output port, output low (for
jumper-set ports) (default)
Table2-1:Summary ofjumpersettings
1
1

14 PCI-1753 User's Manual
2.4 Installation Instructions
The PCI-1753/1753E can be installed in any PCI slot in the computer.
However, refer to the computer user's manual to avoid any mistakes
and danger before you follow the installation procedure below:
1. Turn off your computer and any accessories connected to the
computer.
Warning!: TURNOFFyourcomputerpowersupplywhenever
you install or remove any card, or connect and
disconnect cables.
2. Disconnect the power cord and any other cables from the back of
the computer.
3. Remove the cover of the computer.
4. Select an empty 5 V PCI slot. (If you also need to intall the
extension board, the PCI-1753E, to control more than 96 I/O points,
please find two adjacent 5V PCI slots.) Remove the screw that
secures the expansion slot cover to the system unit. Save the screw
to secure the interface card retaining bracket.
5. Carefully grasp the upper edge of the PCI-1753. Align the hole in
the retaining bracket with the hole on the expansion slot and align
the gold striped edge connector with the expansion slot socket.
Press the card into the socket gently but firmly. Make sure the card
fits the slot tightly.
5.1. Repeat Step 5 for the PCI-1753E.
5.2. Connect the PCI-1753 and PCI-1753E with the 10-cm 20-pin flat
cable, which is shipped with the PCI-1753E.
Caution!: Please note that the first pin* of the cable connector
should match the first pin* of the connector CN2 on
the PCI-1753/1753E. (* first pin as marked by the
arrow oneachconnector

Chapter 2 Installation 15
6. Secure the PCI-1753/1753E card by screwing the mounting bracket
to the back panel of computer.
7. Attach any accessories (100-pin cable, wiring terminal board, etc.)
to the card.
8. Replace the cover of your computer. Connect the cables you
removed in step 2.
9. Turn the computer power on.

16 PCI-1753 User's Manual