The PCI bus 8255 adapter provides 6 digital I/O ports, each port containing 8 I/O lines giving a total of 48 digital I/O lines.
It provides a maximum of 10MHz count rate and programmable I/O control


Features:
* 32 bit PCI bus with PnP features
* Programmable I/O control functions
* Up to 48 I/O lines
* Provides DII (Decision Industrial Interface) device driver for PnP
* Three independent 16 bits counters
* Maximum of 10MHz counter rate
* Supports several operating modes that are programmable