description
The PCI-1753 uses a PCI controller to interface the card to the PCI
bus. The controller fully implements the PCI bus specification Rev 2.1.
All bus relative configurations, such as base address and interrupt
assignment, are automatically controlled by software.
Features:
Up to 192 (96+96)
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
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