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Manual PCI-DIO-24DH

Chapter 8: Connector Pin Assignments

The H card has a 50-pin connector provided on the back plate of these cards for I/O connections. The

mating connector is an AMP type 1-746285-0 or equivalent. Connector pin assignments are listed below.

Assignment

Port C Hi

PC7

Counter A0 Freq In

PC6

Ctr A1 P.W.I. (Gate)

PC5

Counter A2 Freq Out

PC4

Counter B0 Freq in

Port C Lo

PC3

Ctr B1 P.W.I. (Gate)

PC2

Counter B2 Freq Out

PC1

Counter C0 Freq In

PC0

Ctr C1 P.W.I. (Gate)

Port B

PB7

Ctr C2 Freq Out

PB6

Digital Interrupt

Disable

PB5

External Interrupt

Source

PB4

Even pins 24-50

are all Ground

PB3

PB2

PB1

PB0

Port A

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

Fused +5 VDC

Table 8-1: 50-Pin Connector Pin Assignments

1 2 ... 21 22 23 24 25 26 27 28

Digital I/O Cards 1
USER MANUAL 1
Table of Contents 4
Chapter 1: Introduction 5
Specifications 7
Manual PCI-DIO-24DH 8
Chapter 2: Installation 9
Hardware Installation 10
Chapter 3: Option Selection 11
3.9" 12
Chapter 4: Address Selection 13
Chapter 5: Software 14
Chapter 6: Programming 15
Programming Example (Basic) 18
Programming Example (C) 18
Interrupts 19
Operational Modes 20
Counter/Timer Registers 21
Programming the 8254 22
8254 Driver 24
Customer Comments 28

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