PCI-DIO96
DIGITAL INPUT/OUTPUT
User’s Manual
Revision 2
November, 2000
TABLE OF CONTENTS
22
7.3 VOLTAGE DIVIDERS
.....................................
21
7.2 TTL TO SOLID STATE RELAYS
..........................
20
7.1 PULL UP & PULL DOWN RESISTORS
...................
20
7 ELECTRONICS AND INTERFACING
.......................
18
6 SPECIFICATIONS
............................................
17
5.4.7 Counter Interrupt Source Configure
....................
16
5.4.6 8255 Interrupt Source Configure
.......................
15
5.4.5 8254 Configuration & Data
............................
14
5.4.4 Group 3 8255 Configuration & Data
...................
14
5.4.3 Group 2 8255 Configuration & Data
...................
13
5.4.2 Group 1 8255 Configuration & Data
...................
11
5.4.1 Group 0 8255 Configuration & Data
...................
11
5.4 BADR3
....................................................
10
5.3 BADR2
....................................................
9
5.2.1 INTCSR Configure
.....................................
9
5.2 BADR1
.....................................................
9
5.1 BADR0
.....................................................
9
5 REGISTER MAPS
..............................................
8
4.2 PACKAGED APPLICATION PROGRAMS
.................
8
4.1 UNIVERSAL LIBRARY
....................................
8
4 SOFTWARE
....................................................
7
3.4 CIO-ERB24 & SSR-RACK24 CONNECTIONS
..............
6
3.3 SIGNAL CONNECTION CONSIDERATIONS
..............
3
3.2 CONNECTOR DIAGRAM
..................................
2
3.1 CABLES AND SCREW TERMINAL BOARDS
.............
2
3 I/O CONNECTIONS
...........................................
2
2 INSTALLATION
...............................................
1
1 INTRODUCTION
..............................................
This page is blank.
1 INTRODUCTION
The PCI-DIO96 is a 96-bit line digital I/O board. The board provides the 96 bits in
four 24-bit groups. Each group provides an 8-bit port A and port B, as well as an
8-bit port C that can be split into independent 4-bit port C-HI and a 4-bit port C-LO.
See Figure 1-1 below.
On power up and reset, all I/O bits are set to input mode. If you are using the board
to control items that must be OFF on reset, you will need to install pull-down
resistors. Provisions have been made on the board to allow users to quickly and
easily install SIP resistor networks in either pull-up or pull-down configurations.
Figure 1-1. PCI-DIO96 Block Diagram
1
PCI-DIO96
Block Diagram
PCI BUS (5V, 32-BIT, 33MHZ)
PCI
CONTROLLER
BADR3
Boot
EEPROM
Control
Registers
Decode/Status
CONTROLLER FPGA and LOGIC
LOCAL BUS
CONTROL
BUS
Port A
Port B
Control
(7:0)
(7:0)
DIO Group 0
Port C
(7:0)
Port A
Port B
Control
(7:0)
(7:0)
DIO Group 1
Port C
(7:0)
Port A
Port B
Control
(7:0)
(7:0)
DIO Group 2
Port C
(7:0)
Port A
Port B
Control
(7:0)
(7:0)
DIO Group 3
Port C
(7:0)
PLX-9052
COUNTERS
82C54
INT.
82C55
82C55
82C55
82C55
2 INSTALLATION
The PCI-DIO96 boards are completely plug-and-play. There are no switches or
jumpers on the board. All board addresses are set by your computer’s plug-and-play
software.
InstaCal is the installation, calibration and test software supplied with your data
acquisition / IO hardware. Refer to the Extended Software Installation Manual to
install InstaCal.
If you need it, there is some on-line help in the InstaCal program.
Owners of the Universal Library should read the manual and examine the example
programs prior to attempting any programming tasks.
3 I/O CONNECTIONS
3.1 CABLES AND SCREW TERMINAL BOARDS
The board has a 100-pin, high-density Robinson-Nugent male connector (Figure 3-1).
A C100FF-x cable is used to split the 100 I/O lines into two, 50-wire cables. One
connector has pins 1 to 50, the other has 51 to 100. The two I/O connectors can be
connected directly to two screw-terminal boards such as the CIO-MINI50,
CIO-TERM100, CIO-SPADE50 or SCB-50. See Figures 3-2 and 3-3 for
configuration and pin out.
2
3.2 CONNECTOR DIAGRAM
The PCI-DIO96 I/O connector is a 100-pin type connector accessible from the rear of
the PC at the expansion backplate See Figure 3-1 below for the board pin out.
Figure 3-1. PCI-DIO96 100-Pin Connector Pin Out
3
Port A7 B 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
+5V 49
GND 50
Port A6 B
Port A5 B
Port A4 B
Port A3 B
Port A2 B
Port A1 B
Port A0 B
Port B7 B
Port B6 B
Port B5 B
Port B4 B
Port B3 B
Port B2 B
Port B1 B
Port B0 B
Port C7 B
Port C6 B
Port C5 B
Port C4 B
Port C3 B
Port C2 B
Port C1 B
Port C0 B
Port A7 A
Port A6 A
Port A5 A
Port A4 A
Port A3 A
Port A2 A
Port A1 A
Port A0 A
Port B7 A
Port B6 A
Port B5 A
Port B4 A
Port B3 A
Port B2 A
Port B1 A
Port B0 A
Port C7 A
Port C6 A
Port C5 A
Port C4 A
Port C3 A
Port C2 A
Port C1 A
Port C0 A
51 Port A7 D
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99 +5V
100 GND
Port A6 D
Port A5 D
Port A4 D
Port A3 D
Port A2 D
Port A1 D
Port A0 D
Port B7 D
Port B6 D
Port B5 D
Port B4 D
Port B3 D
Port B2 D
Port B1 D
Port B0 D
Port C7 D
Port C6 D
Port C5 D
Port C4 D
Port C3 D
Port C2 D
Port C1 D
Port C0 D
Port A7 C
Port A6 C
Port A5 C
Port A4 C
Port A3 C
Port A2 C
Port A1 C
Port A0 C
Port B7 C
Port B6 C
Port B5 C
Port B4 C
Port B3 C
Port B2 C
Port B1 C
Port B0 C
Port C7 C
Port C6 C
Port C5 C
Port C4 C
Port C3 C
Port C2 C
Port C1 C
Port C0 C
DIO
Group 1
DIO
Group 2
DIO
Group 0
DIO
Group 3
Figure 3-2. Cable C100FF-xx Configuration
4
SIGNAL CONDITIONING OR
50-PIN SCREW TERMINAL BOARD
SIGNAL
CONDITIONING or
50-PIN SCREW
TERMINAL BOARD.
C100FF-xx
CABLE
BOARD’S
100-PIN I/O
CONNECTOR
I/O PINS 1 TO 50
I/O PINS 51 TO 100
Figure 3-3. Pin Translation - Pins 51 to 100 DI/O Signals
5
1 Port A7 D
Port A6 D 2
3 Port A5 D
Port A4 D 4
5 Port A3 D
Port A2 D 6
7 Port A1 D
Port A0 D 8
9 Port B7 D
Port B6 D 10
11 Port B5 D
Port B4 D 12
13 Port B3 D
Port B2 D 14
15 Port B1 D
Port B0 D 16
17 Port C7 D
Port C6 D 18
19 Port C5 D
Port C4 D 20
21 Port C3 D
Port C2 D 22
23 Port C1 D
Port C0 D 24
25 Port A7 C
Port A6 C 26
Port A4 C 28
Port A2 C 30
45 Port C3 CPort C2 C 46
27 Port A5 C
29 Port A3 C
31 Port A1 C
Port A0 C 32
Port B6 C 34
Port B4 C 36
33 Port B7 C
35 Port B5 C
37 Port B3 C
Port B2 C 38
39 Port B1 C
40Port B0 C
41 Port C7 C
Port C6 C 42
43 Port C5 C
Port C4 C 44
47 Port C1 C
Port C0 C 48
49 +5V
Ground 50
2nd of 2
C100FF-XX
50-Pin Connectors
From board pins 51 to 100
(1st connector is pin 1 to 1, etc.,
DIO Groups 0 and 1)
Pins 51- 100 of 100-Pin Conn.
51 Port A7 D
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99 +5V
100 GND
Port A6 D
Port A5 D
Port A4 D
Port A3 D
Port A2 D
Port A1 D
Port A0 D
Port B7 D
Port B6 D
Port B5 D
Port B4 D
Port B3 D
Port B2 D
Port B1 D
Port B0 D
Port C7 D
Port C6 D
Port C5 D
Port C4 D
Port C3 D
Port C2 D
Port C1 D
Port C0 D
Port A7 C
Port A6 C
Port A5 C
Port A4 C
Port A3 C
Port A2 C
Port A1 C
Port A0 C
Port B7 C
Port B6 C
Port B5 C
Port B4 C
Port B3 C
Port B2 C
Port B1 C
Port B0 C
Port C7 C
Port C6 C
Port C5 C
Port C4 C
Port C3 C
Port C2 C
Port C1 C
Port C0 C
DIO
Group 3
DIO
Group 3
DIO
Group 2
DIO
Group 2
3.3 SIGNAL CONNECTION CONSIDERATIONS
All the digital inputs on the PCI-DIO96 are 8255 CMOS TTL. The PCI-DIO96
output signals are 8255 CMOS.
OMEGA Engineering Inc. offers a wide variety of digital signal conditioning
products that provide an ideal interface between high voltage and/or high current
signals and the PCI-DIO96. If you need control or monitor non-TTL level signals
with your board, please refer to our catalog or our web site for the following
products:
CIO-ERB series, electromechanical relay output boards
CIO-SERB series, 10A electromechanical relay output boards
SSR-RACK series solid state relay I/O module racks
A description of digital interfacing is in the Interface Electronics section.
IMPORTANT NOTE
The 82C55 digital I/O chip initializes all ports as inputs on power-
up and reset. A TTL input is a high impedance input. If you
connect another TTL input device to the 82C55 it could be turned
ON or OFF every time the 82C55 is reset.
Remember, the 82C55 is reset to the INPUT mode.
There are positions for pull-up and pull-down resistor packs on your PCI-DIO96
board. To implement these, please refer to section 7.1.
6
3.4 CIO-ERB24 & SSR-RACK24 CONNECTIONS
PCI-DIO96 boards provide digital I/O in two major groups of 48 bits each (96 total,
but each side of the C100FF-xx cable provides 48 bits). However, many popular
relay and SSR boards provide only 24-bits of I/O. The CIO-ERB24 and
SSR-RACK24 each implements a connector scheme where all 96 bits of the
PCI-DIO96 board may be used to control relays and/or SSRs. This configuration is
shown in Figure 3-4 below. The 24-bits of digital I/O on PCI-DIO96 connector pins
1-24 (base address +0 through +3) control the first relay board. The 24-bits on pins
25-50 will control the second relay/SSR board on the daisy chain and so on up to
100 pins.
Figure 3-4. Relay Rack Cabling
7
CIO-ERB24
or
SSR-RACK24
CIO-ERB24
or
SSR-RACK24
C100FF-X Cable
PCI-DIO96
CIO-ERB24
or
SSR-RACK24
CIO-ERB24
or
SSR-RACK24
IN
IN
IN
IN
OUT
OUT
OUT
OUT
4 SOFTWARE
We highly recommend that users take advantage of our Universal Library package's
easy-to-use programming interfaces. However, if you are an experienced
programmer, and wish to read and write directly to the board, we have provided a
detailed register map in the next chapter.
4.1 UNIVERSAL LIBRARY
The Universal Library provides complete access to the PCI-DIO96 functions from a
range of programming languages. If you are planning to write programs, or would
like to run the example programs for Visual Basic or any other language, please turn
now to the Universal Library manual.
4.2 PACKAGED APPLICATION PROGRAMS
Most packaged application programs, such as SoftWIRE, DAS Wizard and HP-VEE
have drivers for the PCI-DIO96. If the package you own does not appear to have
drivers for the boards, please fax or e-mail the package name and the revision
number from the install disks. We will research the package for you and advise how
to utilize the PCI-DIO96 boards with the driver available.
Some application drivers are included with the Universal Library package, but not
with the application package. If you have purchased an application package directly
from the software vendor, you may need to purchase our Universal Library and
drivers. Please contact us for more information on this topic.
8
5 REGISTER MAPS
The PCI Controller, a PLX-9052, has four configuration, control, and status registers
(Table 5-1). They are described in the following section.
Table 5-1. I/O Region Register Operations
8-bit byteDigital I/O registersBADR3
N/AN/ABADR2
32-bit double wordPCI I/O-mapped config. registersBADR1
32-bit double wordPCI memory-mapped configuration
registers
BADR0
OperationsFunctionI/O Region
5.1 BADR0
BADR0 is reserved for the PLX-9052 configuration registers. There is no reason to
access this region of I/O space.
5.2 BADR1
BADR1 is a 32 bit register for control and configuration of interrupts.
5.2.1 INTCSR Configure
BADR1 +4C hex
LEVEL/EDGEXINTCLRXISAMDXXX
89101112131432:15
READ/WRITE
INTEINTPOLINTXXXPCINTX
01234567
Note: For applications requiring edge triggered interrupts (LEVEL/EDGE bit 8 = 1),
the user must configure the INTPOL bit for active high polarity (bit 1=1).
The INTCSR (Interrupt Control/Status Register) controls the interrupt features of the
PLX-9052 controller. As with all of the PLX-9052 registers, it is 32-bits in length.
Since the rest of the register have specific control functions, those bits must be
masked off in order to access the specific interrupt control functions listed below.
9
INTE Interrupt enable (local):
0 = disabled, 1 = enabled (default)
INTPOL Interrupt polarity:
0 = active low (default), 1 = active high
INT Interrupt status:
0 = interrupt not active, 1 = interrupt active
PCINT PCI interrupt enable:
0 = disabled (default), 1 = enabled
LEVEL/EDGE Interrupt trigger control:
0 = level triggered mode (default), 1 = edge triggered mode
INTCLR Interrupt clear (edge triggered mode only):
0 = N/A, 1 = clear interrupt
ISAMD ISA mode enable control (must be set to 1)
0 = ISA mode disabled, 1 = ISA mode enabled (default)
5.3 BADR2
BADR2 is not used.
10
5.4 BADR3
BADR3 is an 8-bit data bus for reading, writing and control of the individual 82C55
chips and the 82C54. Refer to Table 5-2 for register offsets.
Table 5-2. BADR3 Registers
Interrupt Control 2Interrupt Control 2BADR3 + 15h
Interrupt Control 1Interrupt Control 1BADR3 + 14h
Counter ConfigureCounter ConfigurationBADR3 + 13h
N/AN/ABADR3 + 12h
Counter 2Counter 2BADR3 + 11h
Counter 1Counter 1BADR3 + 10h
Group 3 ConfigureGroup 3 ConfigureBADR3 + F
Group 3 Port C DataGroup 3 Port C DataBADR3 + E
Group 3 Port B DataGroup 3 Port B DataBADR3 + D
Group 3 Port A DataGroup 3 Port A DataBADR3 + C
Group 2 ConfigureGroup 2 ConfigureBADR3 + B
Group 2 Port C DataGroup 2 Port C DataBADR3 + A
Group 2 Port B DataGroup 2 Port B DataBADR3 + 9
Group 2 Port A DataGroup 2 Port A DataBADR3 + 8
Group 1 ConfigureGroup 1 ConfigureBADR3 + 7
Group 1 Port C DataGroup 1 Port C DataBADR3 + 6
Group 1 Port B DataGroup 1 Port B DataBADR3 + 5
Group 1 Port A DataGroup 1 Port A DataBADR3 + 4
Group 0 ConfigureGroup 0 ConfigureBADR3 + 3
Group 0 Port DataGroup 0 Port C DataBADR3 + 2
Group 0 Port B DataGroup 0 Port B DataBADR3 + 1
Group 0 Port A DataGroup 0 Port A DataBADR3 + 0
WRITE FUNCTION
READ FUNCTIONREGISTER
The 82C55 may be programmed to operate in Input/Ouput (mode 0), Strobed
Input/Ouput (mode 1) or Bi-Directional Bus (mode 2). The following information
describes mode 0 operation. Users needing information regarding other modes of
operation should refer to an Intel or Intersil 82C55 data sheet.
Upon power-up, an 82C55 is reset and defaults to the input mode. No further
programming is needed to use the 24 lines of an 82C55 as TTL inputs.
5.4.1 Group 0 8255 Configuration & Data
GROUP 0, PORT A DATA
BADR3 + 0
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
11
GROUP 0, PORT B DATA
BADR3 + 1
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
GROUP 0, PORT C DATA
BADR3 + 2
READ/WRITE
CL1CL2CL3CL4CH1CH2CH3CH4
C1C2C3C4C5C6C7C8
01234567
GROUP 0 CONFIGURE
BADR3 + 3
READ/WRITE
CLBM1CHAM2M3MS
01234567
This register is used to configure the Group 0 ports as either input or output, and
configures the operating mode to mode 0, 1 or 2. The following describes
configuration for mode 0. See the Intel or Harris 8255 data sheets for information on
other modes of operation
8255 MODE 0 CONFIGURATION
1. Output Ports
In mode 0 configuration, 82C55 ports can be configured as outputs, holding the data
written to them. For example, to set all three ports (A, B, & C) of Group 0 to output
mode, write the value 80 hex to BADR3 + 3 (refer to Table 5-3 below). The user is
then able to read the current state of the output port by simply reading the address
corresponding to that port.
2. Input Ports
In mode 0 configuration, the 82C55 ports can be configured as inputs, reading the
state of the inputs lines. For example, to set all of the ports of Group 0 to the input
mode, write the value 9B hex to BADR3 + 3.
12
Table 5-3. DIO Port Configurations/Per Group
ININININ1559B1111
OUTINININ1549A0111
ININOUTIN153991011
OUTINOUTIN152980011
INOUTININ147931101
OUTOUTININ146920101
INOUTOUTIN145911001
OUTOUTOUTIN144900001
INININOUT1398B1110
OUTININOUT1388A0110
ININOUTOUT137891010
OUTINOUTOUT136880010
INOUTINOUT131831100
OUTOUTINOUT130820100
INOUTOUTOUT129811000
OUTOUTOUTOUT128800000
CLCUBADecHexD0D1D3D4
ValuesProgramming Codes
Notes: ‘CU’ is PORT C upper nibble, ‘CL’ is PORT C lower nibble.
5.4.2 Group 1 8255 Configuration & Data
GROUP 1, PORT A DATA
BADR3 + 4
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
GROUP 1, PORT B DATA
BADR3 + 5
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
GROUP 1, PORT C DATA
BADR3 + 6
READ/WRITE
CL1CL2CL3CL4CH1CH2CH3CH4
C1C2C3C4C5C6C7C8
01234567
13
GROUP 1 CONFIGURE
BADR3 + 7
READ/WRITE
CLBM1CHAM2M3MS
01234567
5.4.3 Group 2 8255 Configuration & Data
GROUP 2, PORT A DATA
BADR3 + 8
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
GROUP 2, PORT B DATA
BADR3 + 9
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
GROUP 2, PORT C DATA
BADR3 + A hex
READ/WRITE
CL1CL2CL3CL4CH1CH2CH3CH4
C1C2C3C4C5C6C7C8
01234567
GROUP 2 CONFIGURE
BADR3 + B hex
READ/WRITE
CLBM1CHAM2M3MS
01234567
5.4.4 Group 3 8255 Configuration & Data
GROUP 3, PORT A DATA
BADR3 + C hex
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
14
GROUP 3, PORT B DATA
BADR3 + D hex
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
GROUP 3, PORT C DATA
BADR3 + E hex
READ/WRITE
CL1CL2CL3CL4CH1CH2CH3CH4
C1C2C3C4C5C6C7C8
01234567
GROUP 3 CONFIGURE
BADR3 + F hex
READ/WRITE
CLBM1CHAM2M3MS
01234567
5.4.5 8254 Configuration & Data
COUNTER 1 DATA
BADR3 + 10 hex
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
The 82C54 counters 1 and 2 have been configured in hardware to produce a 32-bit
counter for use in interrupt generation. This register provides access to the lower 16
data bits. Since the interface to the 82C54 is only 8-bits wide, write counter data in
two bytes; low byte first, followed by the high byte.
COUNTER 2 DATA
BADR3 + 11 hex
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
The 82C54 counters 1 and 2 have been configured in hardware to produce a 32-bit
counter for use in interrupt generation. This register provides access to the upper 16
data bits. Since the interface to the 82C54 is only 8-bits wide, write counter data in
two bytes; low byte first, followed by the high byte.
15
COUNTER CONFIGURATION
BADR3 + 13 hex
READ/WRITE
D0D1D2D3D4D5D6D7
01234567
This register is used to set the operating modes of each of the 82C54’s counters.
Configure the counters by writing mode information to the Configure register,
followed by the count information written to the specific counter (data) registers.
Refer to the Celeritous 82C54 data sheets for more detailed information.
5.4.6 8255 Interrupt Source Configure
BADR3 + 14 hex
READ/WRITE
AIRQ0AIRQ1BIRQ0BIRQ1CIRQ0CIRQ1DIRQ0DIRQ1
01234567
DIRQ1 When this bit is set, the 8255 in Group 3 will generate an interrupt on
INTRB if INTEN in BASE +15 hex is also set.
DIRQ0 When this bit is set, the 8255 in Group 3 will generate an interrupt on
INTRA if INTEN in BASE +15 hex is also set.
CIRQ1 When this bit is set, the 8255 in Group 2 will generate an interrupt on
INTRB if INTEN in BASE +15 hex is also set.
CIRQ0 When this bit is set, the 8255 in Group 2 will generate an interrupt on
INTRA if INTEN in BASE +15 hex is also set.
BIRQ1 When this bit is set, the 8255 in Group 1 will generate an interrupt on
INTRB if INTEN in BASE +15 hex is also set.
BIRQ0 When this bit is set, the 8255 in Group 1 will generate an interrupt on
INTRA if INTEN in BASE +15 hex is also set.
AIRQ1 When this bit is set, the 8255 in Group 0 will generate an interrupt on
INTRB if INTEN in BASE +15 hex is also set.
AIRQ0 When this bit is set, the 8255 in Group 0 will generate an interrupt on
INTRA if INTEN in BASE +15 hex is also set.
16
5.4.7 Counter Interrupt Source Configure
BADR3 + 15 hex
READ/WRITE
CTR1CTRIRINTENXXXXX
01234567
INTEN Enables or disabled interrupts. 1 = enabled, 0 = disabled
CTRIR Enables or disables the counters as an interrupt source. 1 = counters may
generate interrupts. 0 = counters cannot generate interrupts.
CTR1 Controls whether counter 2 is the interrupt source, or counter 1 is the
interrupt source. When CTR1 is set to 1, the interrupt source is counter 2
and counter 1 acts as a prescaler for counter 2. When CTR1 is set to 0,
the interrupt source is counter 1. (Counter 3 is not used.)
17
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