ADLINK cPCI-7249R - Manual (Page 6)

ii • Table of Contents
Registers Format .....................................................................20
3.1 PCI PnP Registers ...............................................................20
3.2 I/O Address Map ..................................................................21
Operation Theorem..................................................................22
4.1 Digital I/O Ports ....................................................................22
4.1.1 Introduction.....................................................................................22
4.1.2 8255 Mode 0...................................................................................22
4.1.3 Special Function of the DIO Signals ...............................................22
4.1.4 Digital I/O Port Programming..........................................................23
4.1.5 Control Word ..................................................................................23
4.1.6 Power on Configuration ..................................................................24
4.1.7 Note for Output Data.......................................................................24
4.1.8 Note for cPCI-7249R ......................................................................24
4.2 Timer/Counter Operation......................................................25
4.2.1 Introduction.....................................................................................25
4.2.2 General Purpose Timer/Counter.....................................................25
4.2.2 Cascaded 32 Bits Timer .................................................................26
4.2.3 Event Counter and Edge Control ....................................................26
4.3 Interrupt Multiplexing ............................................................26
4.3.1 Architecture ....................................................................................26
4.3.2 IRQ Level Setting............................................................................27
4.3.3 Note for Dual Interrupts ..................................................................27
4.3.4 Interrupt Source Control .................................................................28
4.4 12V and 5V Power Supply ...................................................29
C/C++ Libraries ........................................................................30
5.1 Libraries Installation ............................................................30
5.2 Programming Guide .............................................................31
5.2.1 Naming Convention ........................................................................31
5.2.2 Data Types .....................................................................................31
5.3 _7248/96_Initial ....................................................................32
5.4 Digital Input...........................................................................33
5.5 Digital Output........................................................................35
5.6 Configuration Port ................................................................36
5.7 Configuration Channel..........................................................37
5.8 Set Interrupt Control .............................................................39
5.9 Timer Start............................................................................40
5.10 Timer Read...........................................................................41
5.11 Timer Stop ............................................................................42
5.12 Cascaded Timer ...................................................................43
5.13 Get IRQ Status .....................................................................44