ADLINK Technology 72XX Series Manuel d'utilisateur télécharger pdf (Page 4)

iv Table of Contents

72XX Series

User’s Manual

2.6.2 cPCI-7248 Pin Assignment.................................................16

2.6.3 cPCI-7249R Pin Assignment ..............................................17

2.6.4 R7249 OPTO-22 Connectors..............................................18

2.7 Jumpers Description.......................................................... 19

2.7.1 Power on Status of Ports....................................................19

2.7.2 12V Power Supply Configuration........................................20

2.8 Termination Boards Connection ........................................ 21

3 Registers Format .............................................................. 23

3.1 PCI Plug and Play Registers.............................................. 23

3.2 I/O Address Map................................................................ 24

4 Operation Theory.............................................................. 25

4.1 Digital I/O Ports.................................................................. 25

4.1.1 Introduction.........................................................................25

4.1.2 8255 Mode 0.......................................................................25

4.1.3 Special Function of the DIO Signals...................................25

4.1.4 Digital I/O Port Programming..............................................26

4.1.5 Control Word.......................................................................27

4.1.6 Power On Configuration......................................................28

4.1.7 Note for Output Data...........................................................28

4.1.8 Note for cPCI-7249R...........................................................28

4.2 Timer/Counter Operation................................................... 29

4.2.1 Introduction.........................................................................29

4.2.2 General Purpose Timer/Counter.........................................30

4.2.3 Cascaded 32 Bits Timer......................................................30

4.2.4 Event Counter and Edge Control........................................30

4.3 Interrupt Multiplexing.......................................................... 31

4.3.1 Architecture.........................................................................31

4.3.2 IRQ Level Setting................................................................31

4.3.3 Note for Dual Interrupts.......................................................32

4.3.4 Interrupt Source Control......................................................32

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ADLINK Technology 72XX Series Manuel d'utilisateur Page 4