I am designing a circuit which requires 96 outputs from the parallel port which is achieved through multiplexing, using the 8 data lines available on the port. Each of the 96 outputs will then be used to enable a latch. However, I also need an additional 3 lines of data into each of these latches, so I think I will need 11 outputs.
I read that the parallel port can be used in "output" mode to allow the control lines (pin 1, 14, 16, 17) to be used as data outputs- which would give me 12 data lines. Will this work as I am suggesting? Will I just need to address the data and control lines separately when programming?
Any help or info regarding this would be much appreciated
-Andy.
I read that the parallel port can be used in "output" mode to allow the control lines (pin 1, 14, 16, 17) to be used as data outputs- which would give me 12 data lines. Will this work as I am suggesting? Will I just need to address the data and control lines separately when programming?
Any help or info regarding this would be much appreciated
-Andy.