i notice a lot of circuits out there that are for parallel port interfacing. there are actually 4 varieties:
- the output lines are pulled up
- the output lines are buffered
- the output lines are directly connected to the other ic's, but there are no buffers
- the outputs are connected to transistors
which of these is "really" the standard way of interfacing the parallel port?
- the output lines are pulled up
- the output lines are buffered
- the output lines are directly connected to the other ic's, but there are no buffers
- the outputs are connected to transistors
which of these is "really" the standard way of interfacing the parallel port?