Parallel Port Pin Diagram. 2 pin diagram of 8255. Data 8 pins control 4 status 5 and ground 8.
Programmable peripheral interface 8255. Each pin in the cable is designated for a specific purpose but typically only pins 2 through 9 are used to send data. The parallel input output port chip 8255 is also called as programmable peripheral input output port.
The diagram below shows all three lpt ports along with their supported speed and description.
Thats why it is faster in comparison to the serial communication. Step pin 2 dir pin 3 y axis. The diagram below shows the pins of the parallel port connector when looking at the computers connector. Db 9 pin connector diagram is given below.