| ??? 02/21/03 22:19 Read: times |
#39729 - RE: 8255- whats wrong with it ? Responding to: ???'s previous message |
industrial control systems need more I/O
than any micro would offer for example PLC's there are PLC's with hundreds of I/O's how can you adress hundreds of I/O with only 4 ports and without a bus ? |



