PCI-1753 is a 96-bit digital I/O card for the
PCI bus, which can be extended to 192 digital I/O channels by connecting with
its extension board, PCI-1753E. The card emulates mode 0 of the 8255 PPI chip,
but the buffered circuits offer a higher driving capability than the 8255. The
96 I/O lines are divided into twelve 8-bit I/O ports: A0, B0, C0, A1, B1, C1,
A2, B2, C2, A3, B3 and C3. You can configure each port as input or output via
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
- Supports dry contact and wet contact
- High-density 100-pin SCSI connector
