User`s manual

4 PCI-1753 User's Manual
1.2 Features
• 96/192 TTL digital I/O lines
• Emulates mode 0 of 8255 PPI
• Buffered circuits for higher driving capacity than 8255
• Multiple-source interrupt handling
• Interrupt output pin for simultaneously triggering external devices
with the interrupt
• Output status read-back
• “Pattern match” and “Change of state” interrupt functions for
critical I/O monitoring
• Keeps I/O setting and digital output values when hot system reset
• Supports dry contact and wet contact
• High-density 100-pin SCSI connector
1.3 Applications
• Industrial AC/DC I/O devices monitoring and controlling
• Relay and switch monitoring and controlling
• Parallel data transfer
• TTL, DTL and CMOS logic signal sensing
• Indicator LED driving