Measurement Computing PCI-QUAD04 - Manual (Page 7)

PCI-QUAD04 User's Guide Introducing the PCI-QUAD04
7
The PCI-QUAD04 also includes an 82C59 Programmable Interrupt Controller which accepts the four Index
inputs directly and the Carry/Borrow outputs from the LS7266 (counter overflow/underflow or count value
match) to generate interrupts to the PC bus. The interrupt controller operates in Polled Mode and allows for
masking and priority setting of the interrupt inputs.
PCI-QUAD04 block diagram
PCI-QUAD04 functions are illustrated in the block diagram shown here.
Figure 1. PCI-QUAD04 functional block diagram
Software features
For information on the features of InstaCal and the other software included with your PCI-QUAD04, refer to
the Quick Start Guide that shipped with your device.