ADLINK PCI-7396 - Manual (Page 9)

Introduction
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Introduction
The PCI-7396 is a 48/96-bit parallel digital input/output (DIO) card designed
for industrial applications. The plug and play feature of PCI-Bus architecture
make it easy for users to install their systems quickly.
The PCI-7396 emulates two/four 8255 Programmable Peripheral Interface
(PPI) chips. Each PPI offers 3 8-bit DIO ports which can be accessed
simultaneously. The total 6/12 ports can be programmed as input or output
independently.
The PCI-7396 supports external trigger to latch the digital input data. The
function of “Change of State” (COS) interrupt is provided. It means when
anyone of these digital inputs changes its state, an interrupt will be generated
for user to handle this external event.
1.1 Features
The PCI-7396 Digital I/O boards provide the following advanced features:
1.1.1 Digital I/O Ports
u 48/96 TTL compatible digital I/O lines
u SCSI-type 100-pin connector (AMP-787082-9)
u 48mA High current driving capability per channel
u Output status read-back
u Support external trigger to latch digital input data (PCI-7348 only)